HP Hewlett Packard Water Pump MHP TN User Manual
USER INSTRUCTIONS  
MHP-TN centrifugal pump  
Installation  
Operation  
Maintenance  
Single-stage, axial suction, vertical discharge type  
centrifugal pump  
PCN=71576313 – 02/07 (E)  
These instructions must be read prior to installing,  
operating, using and maintaining this equipment.  
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MHP-TN USER INSTRUCTIONS ENGLISH 71576313 - 02/07  
INDEX  
Page  
Page  
Additional sources (10.3) .....................................27  
Alignment of shafting (see 4.2, 4.4 and 4.7)  
Sectional drawings (8.1)...................................... 26  
Sound level (see 1.9, Noise level).......................... 9  
Sources, additional information (10.3).................. 27  
Spare parts (6.3) ................................................. 24  
Specific machine performance (1.8) ...................... 8  
Standard maintenance (6.2.1) ............................ 22  
Starting the pump (5.4)........................................ 18  
Stop/start frequency (5.5.5) ................................. 20  
Stopping and shutdown (5.6)............................... 20  
Storage, pump (2.4) ............................................ 11  
Storage, spare parts (6.3.2)................................. 24  
Suction piping (4.5.2) ......................................... 15  
Supplementary manuals or information sources .. 27  
Thermal expansion (4.4.1) .................................. 14  
Transport and storage (2) ................................... 10  
Trouble-shooting (see 7) ..................................... 25  
Vibration (5.5.4)................................................... 19  
ATEX marking (1.6.4.2) .........................................7  
CE marking and approvals (1.2)............................. 4  
Certification (9)....................................................27  
Change notes (10.2)............................................27  
Cleaning prior to operation (5.8.1) .......................21  
Commissioning, start-up, operation (5).................17  
Compliance, ATEX (1.6.4.1)................................... 6  
Configurations (3.1) .............................................11  
Copyright (1.4).......................................................4  
Coverage charts (3.3)..........................................12  
Direction of rotation (5.1)......................................17  
Disassembly (6.5)................................................24  
Discharge piping (4.5.3) ......................................16  
Disclaimer (1.3)..................................................... 4  
Dismantling (see 6.5, Disassembly) .....................24  
Drawings (8.1).....................................................26  
Duty conditions (1.5)..............................................4  
Electrical connections (4.6)..................................16  
End of product life (2.5)........................................11  
Faults; causes and remedies (7)..........................25  
Final checks (4.5.4) ............................................16  
First pump start up (5.4.2) ................................... 18  
Foundation (4.2)..................................................13  
Forces and moments (see 4.5.1)..........................15  
General arrangement drawing (8.3) .....................27  
Gland packing (6.2.4)........................................... 23  
Grouting (4.3) ......................................................14  
Guarding (5.2).....................................................17  
Handling (2.2)......................................................10  
Hydraulic, mechanical and electrical duty (5.7).....20  
Inspection (6.2.2 and 6.2.3) .................................22  
Installation (4)......................................................13  
Internal coating (6.2.5).........................................23  
Lifting (2.3) ..........................................................10  
Location (4.1).......................................................13  
Maintenance (6)...................................................21  
Maintenance schedule (6.2).................................22  
Nomenclature (3.2)..............................................11  
Nameplate (1.7.1)..................................................8  
Operating limits (see 3.1).....................................12  
Ordering spare parts (6.3.1).................................24  
Parts lists (8.2).....................................................27  
Piping (4.5)..........................................................15  
Protection systems (4.8) ......................................17  
Pump masses (2.2.2) ..........................................10  
Receipt and unpacking (2.1) ................................10  
Recommended spares (6.4).................................24  
Recycling (2.5).....................................................11  
Replacement parts (see 6.3 and 6.4) ...................24  
Running the pump (5.5) .......................................19  
Safety action (1.6.3)...............................................5  
Safety labels (1.7.2)...............................................8  
Safety markings (1.6.1)..........................................5  
Safety, protection systems (see 1.6 and 4.8)  
Page 3 of 28  
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MHP-TN USER INSTRUCTIONS ENGLISH 71576313 - 02/07  
To confirm the Approvals applying and if the product is  
CE marked, check the serial number plate markings  
and the Certification. (See section 9, Certification.)  
1 INTRODUCTION AND SAFETY  
1.1 General  
1.3 Disclaimer  
These instructions must always be kept  
close to the product's operating location or  
directly with the product.  
Information in these User Instructions is believed  
to be reliable. In spite of all the efforts of Flowserve  
Corporation to provide sound and all necessary  
information the content of this manual may appear  
insufficient and is not guaranteed by Flowserve as  
to its completeness or accuracy.  
Flowserve products are designed, developed and  
manufactured with state-of-the-art technologies in  
modern facilities. The unit is produced with great  
care and commitment to continuous quality control,  
utilizing sophisticated quality techniques, and safety  
requirements.  
Flowserve manufactures products to exacting  
International Quality Management System Standards  
as certified and audited by external Quality Assurance  
organizations. Genuine parts and accessories have  
been designed, tested and incorporated into the  
products to help ensure their continued product quality  
and performance in use. As Flowserve cannot test  
parts and accessories sourced from other vendors the  
incorrect incorporation of such parts and accessories  
may adversely affect the performance and safety  
features of the products. The failure to properly select,  
install or use authorized Flowserve parts and  
accessories is considered to be misuse. Damage or  
failure caused by misuse is not covered by the  
Flowserve warranty. In addition, any modification of  
Flowserve products or removalof original components  
may impair the safety of these products in their use.  
Flowserve is committed to continuous quality  
improvement and being at service for any further  
information about the product in its installation and  
operation or about its support products, repair and  
diagnostic services.  
These instructions are intended to facilitate  
familiarization with the product and its permitted use.  
Operating the product in compliance with these  
instructions is important to help ensure reliability in  
service and avoid risks. The instructions may not  
take into account local regulations; ensure such  
regulations are observed by all, including those  
installing the product. Always coordinate repair  
activity with operations personnel, and follow all plant  
safety requirements and applicable safety and health  
laws and regulations.  
1.4 Copyright  
All rights reserved. No part of these instructions may  
be reproduced, stored in a retrieval system or  
transmitted in any form or by any means without  
prior permission of Flowserve.  
These instructions must be read prior to  
installing, operating, using and maintaining the  
equipment in any region worldwide. The  
equipment must not be put into service until all  
the conditions relating to safety noted in the  
instructions, have been met.  
1.5 Duty conditions  
This product has been selected to meet the  
specifications of your purchaser order. The  
acknowledgement of these conditions has been sent  
separately to the Purchaser. A copy should be kept  
with these instructions.  
1.2 CE marking and approvals  
It is a legal requirement that machinery and  
equipment put into service within certain regions of  
the world shall conform with the applicable CE  
Marking Directives covering Machinery and, where  
applicable, Low Voltage Equipment, Electromagnetic  
Compatibility (EMC), Pressure Equipment Directive  
(PED) and Equipment for Potentially Explosive  
Atmospheres (ATEX).  
The product must not be operated beyond  
the parameters specified for the application. If  
there is any doubt as to the suitability of the  
product for the application intended, contact  
Flowserve for advice, quoting the serial number.  
Where applicable the Directives and any additional  
Approvals cover important safety aspects relating to  
machinery and equipment and the satisfactory  
provision of technical documents and safety  
instructions. Where applicable this document  
incorporates information relevant to these Directives  
and Approvals.  
If the conditions of service on your purchase order  
are going to be changed (for example liquid pumped,  
temperature or duty) it is requested that the user  
seeks the written agreement of Flowserve before  
start up.  
Page 4 of 28  
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MHP-TN USER INSTRUCTIONS ENGLISH 71576313 - 02/07  
1.6.3 Safety action  
1.6 Safety  
This is a summary of conditions and actions to  
prevent injury to personnel and damage to the  
environment and to equipment. For products  
used in potentially explosive atmospheres  
section 1.6.4 also applies.  
1.6.1 Summary of safety markings  
These User Instructions contain specific safety  
markings where non-observance of an instruction  
would cause hazards. The specific safety markings are:  
This symbol indicates electrical safety  
instructions where non-compliance will involve a high  
risk to personal safety or the loss of life.  
NEVER DO MAINTENANCE WORK  
WHEN THE UNIT IS CONNECTED TO POWER  
GUARDS MUST NOT BE REMOVED WHILE  
THE PUMP IS OPERATIONAL  
This symbol indicates safety instructions where  
non-compliance would affect personal safety and  
could result in loss of life.  
DRAIN THE PUMP AND ISOLATE PIPEWORK  
BEFORE DISMANTLING THE PUMP  
The appropriate safety precautions should be taken  
where the pumped liquids are hazardous.  
This symbol indicates “hazardous substances  
and toxic fluid” safety instructions where non-  
compliance would affect personal safety and could  
result in loss of life.  
FLUORO-ELASTOMERS (When fitted.)  
When a pump has experienced temperatures over  
250 ºC (482 ºF), partial decomposition of fluoro-  
elastomers (example: Viton) will occur. In this  
condition these are extremely dangerous and skin  
contact must be avoided.  
This symbol indicates safety  
instructions where non-compliance will involve some  
risk to safe operation and personal safety and would  
damage the equipment or property.  
HANDLING COMPONENTS  
Many precision parts have sharp corners and the  
wearing of appropriate safety gloves and equipment  
is required when handling these components. To lift  
heavy pieces above 25 kg (55 lb) use a crane  
appropriate for the mass and in accordance with  
current local regulations.  
This symbol indicates explosive atmosphere  
zone marking according to ATEX. It is used in safety  
instructions where non-compliance in the hazardous  
area would cause the risk of an explosion.  
This symbol is used in safety instructions to  
remind not to rub non-metallic surfaces with a dry  
cloth; ensure cloth is damp. It is used where non-  
compliance in the hazardous area would cause the  
risk of an explosion.  
THERMAL SHOCK  
Rapid changes in the temperature of the liquid within  
the pump can cause thermal shock, which can result  
in damage or breakage of components and should  
be avoided.  
This sign is not a safety symbol but indicates  
an important instruction in the assembly process.  
NEVER APPLY HEAT TO REMOVE  
IMPELLER  
Trapped lubricant or vapor could cause an explosion.  
1.6.2 Personnel qualification and training  
All personnel involved in the operation, installation,  
inspection and maintenance of the unit must be  
qualified to carry out the work involved. If the  
personnel in question do not already possess the  
necessary knowledge and skill, appropriate training  
and instruction must be provided. If required the  
operator may commission the manufacturer/supplier  
to provide applicable training.  
HOT (and cold) PARTS  
If hot or freezing components or auxiliary heating  
supplies can present a danger to operators and  
persons entering the immediate area action must be  
taken to avoid accidental contact. If complete  
protection is not possible, the machine access must  
be limited to maintenance staff only, with clear visual  
warnings and indicators to those entering the  
immediate area. Note: bearing housings must not be  
insulated and drive motors and bearings may be hot.  
Always coordinate repair activity with operations and  
health and safety personnel, and follow all plant  
safety requirements and applicable safety and health  
laws and regulations.  
If the temperature is greater than 68 °C (175 °F)  
or below 5 °C (20 °F) in a restricted zone, or  
exceeds local regulations, action as above shall  
be taken.  
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MHP-TN USER INSTRUCTIONS ENGLISH 71576313 - 02/07  
1.6.4 Products used in potentially explosive  
atmospheres  
HAZARDOUS LIQUIDS  
When the pump is handling hazardous liquids care  
must be taken to avoid exposure to the liquid by  
appropriate sitting of the pump, limiting personnel  
access and by operator training. If the liquid is  
flammable and/or explosive, strict safety procedures  
must be applied.  
The following instructions for pumps and pump  
units when installed in potentially explosive  
atmospheres must be followed to help ensure  
explosion protection.  
The terminology and procedures ensure that the  
installed pump is in compliance with the European  
Directive 94/9/EC, known as the ATEX Directive, which  
is mandatory in Europe and may also be specified in  
other countries. Where applicable, both electrical and  
non-electrical equipment must meet the requirements  
94/9/EC.  
Gland packing must not be used when pumping  
hazardous liquids.  
PREVENT EXCESSIVE EXTERNAL  
PIPE LOAD  
Do not use pump as a support for piping. Do not  
mount expansion joints, unless allowed by Flowserve  
in writing, so that their force, due to internal  
pressure, acts on the pump flange.  
Even if the installation is in a region where ATEX is not  
the applicable regulation, the general measures  
described shall be followed to ensure safe operation.  
The measures are explained under the headings of:  
ENSURE CORRECT LUBRICATION  
(See section 5, Commissioning, startup, operation  
and shutdown.)  
Avoiding excessive surface temperature  
Preventing build up of explosive mixtures  
Preventing the generation of sparks  
Preventing leakages  
START THE PUMP WITH OUTLET  
VALVE PART OPENED  
Maintaining the pump to avoid hazard  
(Unless otherwise instructed at a specific point in the  
User Instructions.)  
1.6.4.1 Scope of compliance  
Use equipment only in the zone for which it is  
appropriate. Always check that the driver, drive  
coupling assembly, seal and pump equipment are  
suitably rated and/or certified for the classification of the  
specific atmosphere in which they are to be installed.  
This is recommended to minimize the risk of  
overloading and damaging the pump motor at full or  
zero flow. Pumps may be started with the valve  
further open only on installations where this situation  
cannot occur. Pump outlet valve shall may need to  
be adjusted to comply with the duty following the run-  
up process. (See section 5, Commissioning start-up,  
operation and shutdown.)  
Where Flowserve has supplied only the bare shaft  
pump, the Ex rating applies only to the pump. The  
party responsible for assembling the pump set shall  
select the coupling, driver and any additional  
equipment, with the necessary CE Declaration of  
Conformity establishing it is suitable for the area in  
which it is to be installed.  
NEVER RUN THE PUMP DRY  
INLET VALVES TO BE FULLY OPEN  
WHEN PUMP IS RUNNING  
The output from a variable frequency drive (VFD) can  
cause additional heating affects in the motor and so, for  
pumps sets with a VFD, the ATEX Certification for the  
motor must state that it is covers the situation where  
electrical supply is from the VFD. This particular  
requirement still applies even if the VFD is in a safe  
area.  
Running the pump at zero flow or below the  
recommended minimum flow continuously will cause  
damage to the seal.  
DO NOT RUN THE PUMP AT  
ABNORMALLY HIGH OR LOW FLOW RATES  
Operating at a flow rate higher than normal or at a  
flow rate with no backpressure on the pump may  
overload the motor and cause cavitation. Low flow  
rates may cause a reduction in pump/bearing life,  
overheating of the pump, instability and  
cavitation/vibration.  
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MHP-TN USER INSTRUCTIONS ENGLISH 71576313 - 02/07  
The responsibility for compliance with the  
1.6.4.2 Marking  
specified maximum liquid temperature is with the  
plant operator.  
An example of ATEX equipment marking is shown  
below. The actual classification of the pump will be  
engraved on the nameplate.  
Temperature classification “Tx” is used when the  
liquid temperature varies and the pump could be  
installed in different hazardous atmospheres. In this  
case the user is responsible for ensuring that the  
pump surface temperature does not exceed that  
permitted in the particular hazardous atmosphere.  
II 2 GD c IIC 135 ºC (T4)  
Equipment Group  
I = Mining  
II = Non-mining  
If an explosive atmosphere exists during the  
Category  
2 or M2 = High level protection  
3 = normal level of protection  
installation, do not attempt to check the direction of  
rotation by starting the pump unfilled. Even a short  
run time may give a high temperature resulting from  
contact between rotating and stationary components.  
Furthermore, confinement of liquid in the pump and  
pipes must be avoided (valve closed). If the liquid  
heats up this may cause excessive pressure and  
lead to bursting of pump components.  
Gas and/or Dust  
G = Gas; D= Dust  
c = Constructional safety  
(in accordance with EN 13463-5)  
Gas Group (Equipment Category 2 only)  
IIA – Propane (typical)  
IIB – Ethylene (typical)  
Where there is any risk of the pump being run against  
a closed valve generating high liquid and casing  
external surface temperatures it is recommended that  
users fit an external surface temperature protection  
device.  
IIC – Hydrogen (typical)  
Maximum surface temperature (Temperature Class)  
(see section 1.6.4.3)  
Avoid mechanical, hydraulic or electrical overload by  
using motor overload trips, temperature monitor or a  
power monitor and make routine vibration monitoring  
checks.  
1.6.4.3 Avoiding excessive surface temperatures  
ENSURE THE EQUIPMENT TEMPERATURE  
CLASS IS SUITABLE FOR THE HAZARD ZONE  
In dirty or dusty environments, regular checks must  
be made and dirt removed from areas around close  
clearances, bearing housings and motors.  
Pumps have a temperature class as stated in the  
ATEX Ex rating on the nameplate. These are based  
on a maximum ambient of 40 °C (104 °F); refer to  
Flowserve for higher ambient temperatures.  
1.6.4.4 Preventing the build up of explosive  
mixtures  
The surface temperature on the pump is influenced  
by the temperature of the liquid handled. The  
maximum permissible liquid temperature depends on  
the temperature class and must not exceed the  
values in the table that follows.  
ENSURE PUMP IS PROPERLY FILLED AND  
VENTED AND DOES NOT RUN DRY.  
Ensure pump and relevant suction and discharge  
pipeline system is totally filled with liquid at all times  
during the pump operation, so that an explosive  
atmosphere is prevented. In addition it is essential to  
make sure that seal chambers, auxiliary shaft seal  
systems and any heating and cooling systems are  
properly filled.  
The temperature rise at the seals, bearings and due  
to the minimum permitted flow rate is taken into  
account in the temperatures stated.  
Temperature limit of liquid  
Maximum  
surface  
temperature  
permitted  
handled (* depending on  
material and construction  
variant - check which is  
lower)  
If the operation of the system cannot avoid this  
condition the fitting of an appropriate dry run  
protection device is recommended (eg liquid  
detection or power monitor).  
Temperature  
class to  
EN 13463-1  
T6  
T5  
T4  
T3  
T2  
T1  
85 °C (185 °F)  
100 °C (212 °F)  
135 °C (275 °F)  
200 °C (392 °F)  
300 °C (572 °F)  
450 °C (842 °F)  
Consult Flowserve  
Consult Flowserve  
115 °C (239 °F) *  
180 °C (356 °F) *  
275 °C (527 °F) *  
400 °C (752 °F) *  
To avoid potential hazards from fugitive emissions of  
vapor or gas to atmosphere the surrounding area  
must be well ventilated.  
Page 7 of 28  
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MHP-TN USER INSTRUCTIONS ENGLISH 71576313 - 02/07  
Where there is a risk from such tools or materials;  
maintenance must be conducted in a safe area.  
It is recommended that a maintenance plan and  
1.6.4.5 Preventing sparks  
To prevent a potential hazard from mechanical  
contact, the coupling guard must be non-sparking.  
To avoid the potential hazard from random induced  
current generating a spark the ground contact on the  
baseplate must be used.  
schedule is adopted. (See section 6, Maintenance.)  
1.7 Nameplate and safety labels  
1.7.1 Nameplate  
For details of nameplate, see the Declaration of  
Conformity, or separate documentation included with  
these User Instructions.  
Avoid electrostatic charge: do not rub non-  
metallic surfaces with a dry cloth, ensure cloth is  
damp.  
Where applicable the coupling must be selected to  
comply with 94/9/EC and correct alignment must be  
maintained.  
1.7.2 Safety labels  
Additional requirements for metallic pumps on  
non-metallic baseplates  
When metallic components are fitted on a non-  
metallic baseplate they must be individually earthed  
(grounded).  
1.6.4.6 Preventing leakage  
The pump must only be used to handle liquids  
for which it has been approved to have the correct  
corrosion resistance.  
Avoid entrapment of liquid in the pump and associated  
piping due to closing of suction and discharge valves,  
which could cause dangerous excessive pressures to  
occur if there is heat input to the liquid. This can occur if  
the pump is stationary or running.  
Bursting of liquid containing parts due to freezing  
must be avoided by draining or protecting the pump  
and ancillary systems.  
Oil lubricated units only:  
Where there is the potential hazard of a loss of a  
seal barrier fluid or external flush, the fluid must be  
monitored.  
If leakage of liquid to atmosphere can result in a  
hazard, the installation of a liquid detection device is  
recommended.  
1.8 Specific machine performance  
For performance parameters see section 1.5, Duty  
conditions. When the contract requirement specifies  
these to be incorporated into User Instructions these  
are included here. Where performance data has  
been supplied separately to the purchaser these  
should be obtained and retained with these User  
Instructions if required.  
1.6.4.7 Maintenance to avoid the hazard  
CORRECT MAINTENANCE IS REQUIRED  
TO AVOID POTENTIAL HAZARDS WHICH GIVE A  
RISK OF EXPLOSION  
The responsibility for compliance with  
maintenance instructions is with the plant operator.  
To avoid potential explosion hazards during  
maintenance, the tools, cleaning and painting  
materials used must not give rise to sparking or  
adversely affect the ambient conditions.  
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MHP-TN USER INSTRUCTIONS ENGLISH 71576313 - 02/07  
Similarly the motor noise assumed in the “pump and  
motor” noise is that typically expected from standard  
and high efficiency motors when on load directly  
driving the pump. Note that a motor driven by an  
inverter may show an increased noise at some  
speeds.  
1.9 Noise level  
Attention must be given to the exposure of personnel  
to the noise, and local legislation will define when  
guidance to personnel on noise limitation is required,  
and when noise exposure reduction is mandatory.  
This is typically 80 to 85 dBA.  
If a pump unit only has been purchased for fitting  
with your own driver then the “pump only” noise  
levels in the table should be combined with the level  
for the driver obtained from the supplier. Consult  
Flowserve or a noise specialist if assistance is  
required in combining the values.  
The usual approach is to control the exposure time  
to the noise or to enclose the machine to reduce  
emitted sound.  
You may have already specified a limiting noise level  
when the equipment was ordered, however if no  
noise requirements were defined, then attention is  
drawn to the following table to give an indication of  
equipment noise level so that you can take the  
appropriate action in your plant.  
It is recommended that where exposure approaches  
the prescribed limit, then site noise measurements  
should be made.  
The values are in sound pressure level LpA at 1 m  
(3.3 ft) from the machine, for “free field conditions  
over a reflecting plane”.  
Pump noise level is dependent on a number of  
operational factors, flow rate, pipework design and  
acoustic characteristics of the building, and so the  
values given are subject to a 3 dBA tolerance and  
cannot be guaranteed.  
For estimating sound power level LWA (re 1 pW)  
then add 17 dBA to the sound pressure value.  
Typical sound pressure level LpA at 1 m reference 20 μPa, dBA  
2 900 r/min 1 750 r/min  
Motor size  
and speed  
kW (hp)  
3 550 r/min  
1 450 r/min  
Pump  
Pump and  
motor  
Pump  
Pump and  
motor  
Pump  
Pump and  
motor  
Pump  
Pump and  
motor  
only  
72  
72  
74  
74  
75  
75  
75  
76  
76  
80  
80  
81  
81  
83  
83  
86  
86  
87  
87  
89  
89  
only  
64  
64  
66  
66  
68  
70  
71  
72  
72  
76  
76  
77  
77  
79  
79  
82  
82  
83  
83  
85  
85  
only  
62  
62  
64  
64  
65  
65  
65  
66  
66  
70  
70  
71  
71  
73  
73  
76  
76  
77  
77  
79  
79  
85  
87  
only  
62  
62  
62  
62  
63  
63  
63  
64  
64  
68  
68  
69  
69  
71  
71  
74  
74  
75  
75  
77  
77  
83  
85  
< 0.55 (< 0.75)  
0.75 (1)  
1.1 (1.5)  
1.5 (2)  
72  
72  
74  
74  
76  
76  
76  
77  
77  
81  
81  
81  
81  
83  
83  
86  
86  
87  
88  
90  
90  
65  
66  
67  
71  
72  
73  
73  
75  
75  
78  
78  
78  
79  
81  
81  
84  
84  
85  
85  
87  
87  
64  
64  
64  
64  
66  
66  
66  
67  
67  
71  
71  
71  
71  
73  
73  
76  
76  
77  
78  
80  
80  
87  
90  
64  
64  
63  
63  
64  
64  
64  
65  
65  
69  
69  
71  
71  
73  
73  
76  
76  
77  
78  
80  
80  
85  
86  
2.2 (3)  
3 (4)  
4 (5)  
5.5 (7.5)  
7.5 (10)  
11 (15)  
15 (20)  
18.5 (25)  
22 (30)  
30 (40)  
37 (50)  
45 (60)  
55 (75)  
75 (100)  
90 (120)  
110 (150)  
150 (200)  
200 (270)  
300 (400)  
The noise level of machines in this range will most likely be of values which require noise exposure control, but typical values are  
inappropriate.  
Note: for 1 180 and 960 r/min reduce 1 450 r/min values by 2 dBA. For 880 and 720 r/min reduce 1 450 r/min values by 3 dBA.  
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MHP-TN USER INSTRUCTIONS ENGLISH 71576313 - 02/07  
In areas where the staff has to intervene, remember  
that when the level of the sound pressure is:  
To lift machines or pieces with one or several  
suspension rings, only use hooks and chains in  
compliance with the local regulations concerning  
safety.  
below 70 dBA: it is not necessary to take special  
precautions.  
above 70 dBA: people working continuously in  
the machine room must be supplied with  
protective devices against noise.  
below 85 dBA: no particular measures need to  
be taken for casual visitors staying in the room  
during a limited period.  
above 85 dBA: the room must be considered as  
a dangerous area because of the noise and a  
warning sign must be fixed at each entry warning  
the people coming into the room, even for a  
short period, that they must wear hearing  
protection.  
above 105 dBA: special hearing protection  
adapted to this noise level and to the spectral  
noise components must be installed and a  
warning sign to this effect erected at each entry.  
The staff in the room must wear ear protection.  
Never put cables, chains or ropes directly on or in  
the suspension rings. Cables, chains or lifting ropes  
must never present excessive bending.  
Never bend the lifting hooks, suspension rings,  
chains, etc., which should only be made to endure  
stresses within, calculated limits. Remember that the  
capacity of a lifting device decreases when the  
direction of the lifting force direction makes an angle  
with the device axis.  
To increase the safety and the efficiency of the lifting  
device, all the lifting elements must be as  
perpendicular as possible. If necessary a lifting beam  
can be placed between the winch and the load.  
When heavy pieces are lifted up, never stay or work  
under the load or in the area, which could be in the  
path of the load if it were to swing or fall away. Never  
leave a load hanging from a winch. The acceleration  
or the slowing-down of lifting equipment must stay in  
the safety limits for the staff.  
Make sure that the noise, which travels through the  
walls and windows, does not generate too high noise  
levels in the machine room's surroundings.  
2 TRANSPORT AND STORAGE  
A winch must be positioned in such a way that the  
load will be raised perpendicularly. Where possible  
necessary precautions must be taken to avoid the  
swing of the load, using for example two winches  
making approximately the same angle, below 30°,  
with the vertical.  
2.1 Consignment receipt and unpacking  
Immediately after receipt of the equipment it must be  
checked against the delivery and shipping  
documents for its completeness and that there has  
been no damage in transportation.  
Any shortage and or damage must be reported  
immediately to Flowserve and received in writing  
within one month of receipt of the equipment. Later  
claims cannot be accepted.  
2.2.2 Pump masses  
Pump mass  
Pump type  
kg  
lb  
MHP- TN 100-65-315  
MHP- TN 125-100-315  
134  
152  
295  
335  
Check any crate, boxes and wrappings for any  
accessories or spare parts that may be packed  
separately with the equipment or attached to  
sidewalls of the box or equipment.  
All motors (for masses see the motor  
description plate) must be handled with a winch.  
Each product has a unique serial number. Check  
that this number corresponds with that advised and  
always quote this number in correspondence as well  
as when ordering spare parts or further accessories.  
For masses above 25 kg (55 lb), manual  
handling is forbidden.  
2.3 Lifting  
2.2 Handling  
2.3.1 Slinging of motor pumps units  
2.2.1 General instructions concerning handling  
Boxes, crates, pallets or cartons may be unloaded  
using forklift vehicles or slings dependent on their  
size and construction. See 2.3.1 for positioning of  
slings.  
Use handling means in accordance with motor  
pump unit mass mentioned on the CE plate. For the  
masses of the pumps bare end of shaft see table §  
2.2.2 and nameplate.  
To lift heavy pieces above 25 kg (55 lb), use a winch  
adapted to the mass and in accordance with the  
current local regulations.  
To avoid distortion, the pump unit  
should be lifted as shown.  
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MHP-TN USER INSTRUCTIONS ENGLISH 71576313 - 02/07  
Motor pump unit  
This also includes the liquids and or gases in the  
"seal system" or other utilities.  
Make sure that hazardous substances or toxic  
fluid are disposed of safely and that the correct  
personal protective equipment is used. The safety  
specifications must be in accordance with the current  
regulations at all times.  
3 PUMP DESCRIPTION  
3.1 Configurations  
The centrifugal motor pump is designed for the  
pumping of cold water or all clear liquids which are  
not solid and liquid mixtures, non-corrosive, non-  
abrasive when in contact with the pump motor unit  
and its working parts (Important: for other liquids  
consult Flowserve for beforehand advice).  
Bareshaft pump  
The MHP-TN pump is a centrifugal, single-stage  
pump with axial inlet and outlet in the vertical axis.  
The pump must be stored in a non explosive,  
ventilated location, sheltered from bad weather, dust  
and vibrations.  
When handling always wear gloves, safety  
boots and an industrial safety helmet.  
For masses above 25 kg (55 lb), manual  
handling is forbidden.  
The reliability of the delivered machine can only be  
ensured if it is used according to the conditions given  
in this manual. The maximum values specified in this  
manual must never be exceeded.  
2.4 Storage  
Store the pump in a clean, dry  
location away from vibration. Leave piping  
connection covers in place to keep dirt and other  
foreign material out of pump casing. Turn pump at  
intervals to prevent brinelling of the bearings and the  
seal faces, if fitted, from sticking.  
Maximum working pressure at discharge  
................................................. 16 bar (232 psi)  
Maximum working pressure at suction  
................................................. 10 bar (145 psi)  
Maximum pumped fluid temperature  
- Gland packing without cooling  
Do not store pumps starting on the fan guard.  
.............................................. 105 °C (221 °F)  
Minimum pumped fluid temperature  
The pump may be stored as above for up to 6  
months. Consult Flowserve for preservative actions  
when a longer storage period is needed.  
.................................................... -10 °C (14 °F)  
Maximum ambient temperature.... 40 °C (104 °F)  
Maximum solid suspension  
........................................50 g/m3 (0.003 lbm/ft3)  
Density ..................................1  
2.5 Recycling and end of product life  
At the end of the service life of the product or its  
parts, the relevant materials and parts should be  
recycled or disposed of using an environmentally  
acceptable method and local regulations. If the  
product contains substances which are harmful to  
the environment, these should be removed and  
disposed of in accordance with current regulations.  
2
Viscosity................................ 1 mm /s (31 SSU)  
Maximum rotation speed (frequency 50 Hz)  
....................................................... 2900 min-1  
The maximum speed is shown on the  
pump nameplate.  
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MHP-TN USER INSTRUCTIONS ENGLISH 71576313 - 02/07  
3.2 Nomenclature  
Characteristics shown on the nameplate fixed on the pump are as shown below:  
Each pump is supplied with the following nameplate:  
Speed of rotation  
Pump type  
Mass  
Flow rate  
Head  
Maximum admissible  
Pressure at 20 °C (68 °F)  
Maximum / minimum  
temperature  
Radial/thrust bearing  
Year of construction +  
Manufacture number  
Each pump unit is supplied with the following nameplate:  
Mass of the set  
3.3 Coverage charts  
3.3.1 2900 min-1 (50 Hz): coverage charts (Q, H)  
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MHP-TN USER INSTRUCTIONS ENGLISH 71576313 - 02/07  
4 INSTALLATION  
Equipment operated in hazardous locations  
must comply with the relevant explosion protection  
regulations. See section 1.6.4, Products used in  
potentially explosive atmospheres.  
NF E 27 811  
Provide sufficient space in the foundation to  
accommodate the anchor bolts. If necessary,  
provide concrete risers.  
All equipment must be grounded.  
4.1 Location  
The pump should be located to allow room for  
access, ventilation, maintenance and inspection  
with ample headroom for lifting and should be as  
close as practicable to the supply of liquid to be  
pumped.  
Usually the pump and its drive are mounted on a  
common base plate. If not, individual base plates  
underneath each machine foot shall be installed.  
Base plates are to be fully grouted.  
4.2.1 Setting the base plate for anchoring  
a) Clean the foundation surface thoroughly.  
b) Put shims on the foundation surface [approx  
20-25 mm (0.79-0.98 in.) thick], one on each  
side of the bolt hole (as an alternative, leveling  
screws can be used).  
4.2 Foundation  
There are many methods of  
installing pump units to their foundations. The  
correct method depends on the size of the pump  
unit, its location and noise vibration limitations.  
Non-compliance with the provision of correct  
foundation and installation may lead to failure of  
the pump and, as such, would be outside the  
terms of the warranty.  
c) Lay the base plate and level in both directions  
with extra shims. The base plate should be  
level to within 0.5 mm per 1 m (0.02 in. per 3.3  
ft).  
The base plate should be mounted onto a firm  
foundation, either an appropriate thickness of  
quality concrete or sturdy steel framework.  
It should NOT be distorted or pulled down onto the  
surface of the foundation, but should be supported  
to maintain the original alignment.  
Anchor bolts must be in accordance with the foot  
bolt holes. Use anchor bolts of accepted standards  
and sufficient to ensure a secure fitting in the  
foundation.  
d) If anchor bolts have been pre-cast in the  
foundation slightly tighten the anchor bolts.  
Otherwise let them hang in the foundation  
holes.  
Particularly, this applies to individual plates where  
the anchor bolts have to withstand the driving  
torque.  
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MHP-TN USER INSTRUCTIONS ENGLISH 71576313 - 02/07  
4.4.2 Alignment methods  
4.3 Grouting  
Ensure pump and driver are isolated  
electrically and the half couplings are  
disconnected. Ensure that the pump pipework,  
suction and discharge, is disconnected.  
4.3.1 Base plate grouting  
a) Prepare the site for grouting. Before grouting  
clean the foundation surface thoroughly and  
provide external barriers as shown:  
The alignment MUST be checked.  
Although the pump will have been aligned at the  
factory it is most likely that this alignment will have  
been disturbed during transportation or handling. If  
necessary, align the motor to the pump, not the  
pump to the motor.  
Alignment  
Parallelism and concentricity check:  
b) Prepare grouting product (concrete, resin) in  
accordance with manufacturers' instructions.  
Check the alignment at three or  
four points, before piping assembly.  
with a rule  
with a comparator  
Admissible margin for a motor with roller bearings  
with European couplings:  
= 0.15 mm parallel checking  
= 0.1 mm angular checking  
For US supplied couplings values to be used are:  
= 0.02 in. parallel checking  
= 0.05 in. angular checking  
c) Use grouting products with anti-shrinking  
components.  
d) To grout up to the required level. Polish  
surfaces. Take necessary precautions to avoid  
air bubbles.  
e) Lay-down the barrier, break external angles,  
and polish the different surfaces.  
f) After grout starts to cure, definitively tighten  
anchor bolts.  
Check the couplings manual for further details.  
Angular checking:  
g) Control the alignment such as described as  
follows.  
4.4 Initial alignment  
with a sliding rule  
with a caliper gauge  
Before connecting the couplings  
verify the motor rotation direction.  
The alignment will be definitive only  
after pipe connection (see § 4.5.4).  
4.4.1 Thermal expansion  
If necessary, improve the machine alignment:  
The pump and motor will normally  
have to be aligned at ambient temperature and  
should be corrected to allow for thermal expansion  
at operating temperature. In pump installations  
involving high liquid temperatures, the unit should  
be run at the actual operating temperature, shut  
down and the alignment checked immediately.  
Complete unit mounted on common base plate:  
The machines are first aligned accurately in our  
workshops. Usually, any misalignment observed  
on site is due to a wrong adjustment under the  
base plate (disturbed during transport or because  
of forces exerted by the piping).  
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MHP-TN USER INSTRUCTIONS ENGLISH 71576313 - 02/07  
It is only necessary to rectify the adjustment under  
base plate. If it proves to be insufficient, modify the  
motor and the piping.  
Forces  
Fv Fh  
max max  
Discharge  
DNR  
Moments  
Mt max  
Suction  
DNA  
Pump type  
mm  
(in.)  
100  
(4”)  
mm  
(in.)  
65  
daN daN  
m.daN  
(lbf.ft)  
27  
(lbf)  
(lbf)  
Pump and motor mounted on individual base  
plates:  
MHP-TN  
100-65-315  
140  
105  
(2”1/2)  
(315) (236)  
180 125  
(405) (281)  
(199)  
Machines are (or must be) first mounted on their  
own base plate in the workshop. Once the pump is  
set, it will be regarded as the fixed piece. Any  
alignment necessary shall be carried out on the  
motor.  
MHP-TN  
125-100-315  
125  
(5”)  
100  
(4”)  
47  
(347)  
Never connect the electric motor  
before the setting has been completely finished.  
4.5 Piping  
The user must verify that the equipment is  
isolated from any external sources of vibration.  
Forces and moments values are applied to the  
whole flanges and not flange-by-flange. For their  
sharing out on the pump flanges, refer to standard  
NFCR 13 931.  
Protective covers are fitted to the  
pipe connections to prevent foreign bodies  
entering during transportation and installation.  
Ensure that these covers are removed from the  
pump before connecting any pipes.  
Ensure piping and fittings are  
flushed before use.  
4.5.1 Suction and discharge piping  
The dimensions of the pipes do not directly  
depend on suction and discharge diameters of the  
pump:  
Ensure piping for hazardous liquids is  
arranged to allow pump flushing before removal of  
the pump.  
a) First, choose a flow speed < 2 m/s (7 ft/s) at  
suction, and about 3 m/s (10 ft/s) at discharge.  
b) Take into account the available NPSH, which  
must be superior to the required NPSH of the  
pump.  
4.5.2 Suction piping  
4.5.2.1 Design of a flooded suction line  
The suction line must be as short and direct as  
possible, never mount an elbow directly on the  
inlet flange of the pump.  
Never use pump as a support for  
piping.  
Do not mount expansion joints in  
such a way that their force, due to internal  
pressure, may act on the pump flange.  
Valve  
Non return valve  
Motor  
Maximum forces and moments allowed on the  
pump flanges vary with the pump size and type.  
These external strains may cause misalignment,  
hot bearings, worn couplings, vibrations and the  
possible failure of the pump casing.  
When designing the pipes (§ 4.5.2.1, § 4.5.2.2, §  
4.5.3.1) take necessary precautions in order not to  
exceed maximum allowed strains.  
Continuous  
flow valve  
Baseplate Coupling guard  
Coupling  
Forces and moments applied to the pump flanges  
must never exceed the values shown in the  
following table:  
Flooded suction configuration  
a) Avoid sharp elbows or sudden narrowing. Use  
convergent 20° (total angle).  
b) Arrange the piping so that there are no air  
pockets (no bulges).  
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MHP-TN USER INSTRUCTIONS ENGLISH 71576313 - 02/07  
c) If high points cannot be avoided in suction line,  
If necessary, a control manometer (pressure  
gauge) can be connected on the piping.  
provide them with air relief cocks.  
d) If a strainer is necessary, its net area should  
be three or four times the area of the suction  
pipe.  
e) If an inlet valve is necessary, choose a model  
with direct crossing.  
Control manometer  
Do not tighten flanges before the  
final check (see § 4.5.4).  
4.5.2.2 Design of a suction lift line  
The inlet pipe must be as short and as direct as  
possible, never place an elbow directly on the  
pump inlet nozzle.  
Do not tighten flanges before the  
final check (see § 4.5.4).  
4.5.4 Final checks  
a) Check the tightening of anchor bolts. Tighten  
them if necessary.  
b) Check that protective covers on suction and  
discharge flanges are removed.  
D
I
Sufficient  
immersion  
c) Check that holes of piping flanges are parallel  
and correspond to those of the pump.  
d) Tighten suction and discharge flanges.  
I 3 x D  
4.6 Electrical connections  
Electrical connections must be made  
by a qualified Electrician in accordance with  
relevant local national and international  
Sump suction configuration  
regulations. This includes any grounding.  
a) Avoid sharp elbows or sudden narrowing. Use  
convergent 20° (total angle) with upright  
generating.  
b) Arrange that the suction piping is inclined  
upwards towards the pump ensuring that there  
are no peaks.  
It is important to be aware of the  
EUROPEAN DIRECTIVE on potentially explosive  
areas where compliance with IEC60079-14 is an  
additional requirement for making electrical  
connections.  
c) If a foot valve is necessary, do not oversize it  
because it would generate pulsations (valve  
beating).  
Avoid mechanical, hydraulic or electrical  
overload by using motor overload trips or a power  
monitor and make routine vibration monitoring.  
Do not tighten flanges before the  
final check (see § 4.5.4).  
It is important to be aware of the EUROPEAN  
DIRECTIVE on electromagnetic compatibility when  
wiring up and installing equipment on site. Attention  
must be paid to ensure that the techniques used  
during wiring/installation do not increase  
electromagnetic emissions or decrease the  
electromagnetic immunity of the equipment, wiring or  
any connected devices. If in doubt, contact  
Flowserve for advice.  
4.5.3 Discharge piping  
4.5.3.1 Design of a discharge line  
a) If discharge line is provided with a divergent,  
its total angle will be between 7° and 12°.  
b) Install the discharge valve after the non-return  
valve downstream.  
The motor must be wired up in  
accordance with the motor manufacturer's  
instructions (normally supplied within the terminal  
box) including any temperature, earth leakage,  
current and other protective devices as  
appropriate.  
The non-return valve will be set in the discharge  
pipe to protect the pump from any excessive  
pressure surge and from reverse rotation.  
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MHP-TN USER INSTRUCTIONS ENGLISH 71576313 - 02/07  
Except when explicitly required by the customer in  
The identification nameplate should be checked to  
ensure the power supply is appropriate. A device  
to provide emergency stopping shall be fitted.  
the specifications, when a possibility of reverse  
rotation exists the customer must install a reverse  
rotation protection device.  
Carry out the ground connections according to the  
current local regulations.  
The customer must install all equipment required  
to avoid water hammer.  
To avoid any risk of jamming, the  
direction of rotation will be checked after priming of  
the pump (§ 5.3.1, 5.3.2) and before the first start  
(§ 5.4.2).  
5 COMMISSIONING, START-UP,  
OPERATION AND SHUTDOWN  
These operations must be carried out by  
fully qualified personnel.  
4.7 Final shaft alignment check  
a) Check the alignment pump-motor according to  
the procedure § 4.4.2. Rectify if necessary by  
adjusting the motor only.  
b) Check by hand that the pump turns freely.  
A binding indicates a distortion of the pump,  
which is due to excessive pipe strain. If  
necessary the pipe design must be re-  
examined.  
c) If it provided, connect auxiliary pipe systems  
(hydraulic, pneumatic, sealing system).  
d) Control tightness and functionality of auxiliary  
piping.  
5.1 Direction of rotation  
Starting or operating pumps with  
the wrong direction of rotation can be harmful to  
the pumps. Ensure that the pump rotation is the  
same as the arrow on the pump casing. It is  
preferable to check the direction of rotation before  
installing the coupling. If not, the pump must be  
filled in with the liquid before start-up.  
If maintenance work has been  
carried out to the site's electricity supply, the  
direction of rotation should be re-checked as  
above in case the supply phasing has been  
altered.  
4.8 Protection systems  
The following protection systems are  
recommended particularly if the pump is installed  
in a potentially explosive area or is handling a  
hazardous liquid. If in doubt consult Flowserve.  
If there is any possibility of the system allowing the  
pump to run against a closed valve or below  
minimum continuous safe flow a protection device  
should be installed to ensure the temperature of  
the liquid does not rise to an unsafe level.  
5.2 Guarding  
Guarding is supplied fitted to the pump set.  
If this has been removed or disturbed ensure that  
all the protective guards around the pump coupling  
and exposed parts of the shaft are securely fixed.  
5.3 Priming and auxiliary supplies  
If there are any circumstances in which the system  
can allow the pump to run dry, or start up empty, a  
power monitor should be fitted to stop the pump or  
prevent it from being started. This is particularly  
relevant if the pump is handling a flammable liquid.  
Where there is any risk of the pump being  
run against a closed valve generating high liquid  
and casing external surface temperatures it is  
recommended that users fit an external surface  
temperature protection device.  
If leakage of product from the pump or its  
associated sealing system can cause a hazard it is  
recommended that an appropriate leakage  
detection system is installed.  
Ensure all electrical, hydraulic,  
pneumatic, sealant and lubrication systems (as  
applicable) are connected and operational.  
To prevent excessive surface temperatures at  
bearings it is recommended that temperature or  
vibration monitoring are carried out. See sections  
5.5.3 and 5.5.4.  
Ensure the inlet pipe and pump  
casing are completely full of liquid before starting  
continuous duty operation.  
These operations must be carried out by personnel  
with approved qualifications.  
If a defect of cooling can lead to temperature  
higher than those acceptable a system of cooling  
surveillance must be installed.  
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MHP-TN USER INSTRUCTIONS ENGLISH 71576313 - 02/07  
*Without foot valve:  
5.3.1 Priming of a flooded pump  
Priming may be accomplished by means of venting  
system.  
a) As discharge valve is closed, fill the pump by  
opening the valve at suction. Let air escape by  
removing the plugs located on the pump.  
Foot valves are not recommended when  
the pumped liquid has suspended solid particles.  
They may lodge between foot valve seat and  
shutter.  
b) The discharge pipe is headed and there is a  
by-pass valve on the check valve, open  
slightly the discharge valve and the by-pass of  
the check valve.  
c) When the pump is totally free of air bubbles,  
replace the plugs.  
5.4 Starting the pump  
5.4.1 Bring controls and preparation before the  
first starting and after each service call  
Necessarily:  
a) Check the tightening of the different plugs.  
b) Check that the gland lightly tightens the  
packing rings.  
Air escape  
c)  
Risk of seal ring overheating.  
d) Check the direction of rotation of the motor.  
Refer to the rotation arrow of the pump.  
e)  
Install all protection systems and more  
particularly the coupling guard and the shield  
grid (reference [9331]) of the bearing.  
f) Open all suction valves (if existing).  
g) Close the outlet valve and the bypass valve.  
h) Ensure inlet pipe and pump casing are  
completely full of liquid.  
Priming of a flooded pump  
5.3.2 Priming of a sump suction pump  
* With foot valve:  
a) Fill suction pipe and casing with liquid from an  
independent source (pressure 1 to 2 bars or  
15 to 30 psi).  
b) Let air escape by removing the plugs located  
on the pump.  
5.4.2 First pump start-up  
Suction valves must be fully open  
when pump is running. Never run the pump dry, it  
will cause damage.  
c) When the pump is totally free of air bubbles,  
replace the plugs.  
a) Start motor and check outlet pressure.  
b) If pressure is satisfactory, slowly OPEN outlet  
valve.  
c) Do not run the pump with the outlet valve  
closed for a period longer than 30 seconds.  
External source  
Air escape  
d) If NO pressure, or LOW pressure, STOP the  
pump. Refer to faultfinding chart for fault  
diagnosis.  
The pump should run smoothly and without  
vibration.  
The pump must never run at a capacity of less  
than 40 % of that at the best efficiency.  
Never remove a plug when the pump is  
running.  
Priming of sump suction pump with foot valve  
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MHP-TN USER INSTRUCTIONS ENGLISH 71576313 - 02/07  
SAFETY INSTRUCTIONS WHEN THE PUMP IS  
RUNNING:  
5.5 Running the pump  
5.5.1 Venting the pump  
If hot or freezing components of the machine  
can present a danger to operators, they must be  
shielded to avoid accidental contact. If a 100 %  
protection is not possible, the machine access  
must be confined to the maintenance staff only.  
Vent the pump to enable all trapped air to  
escape taking due care with hot or hazardous  
liquids.  
Under normal operating conditions, after the pump  
has been fully primed and vented, it should be  
unnecessary to re-vent the pump.  
If the temperature is greater than 80 °C (176  
°F), a warning plate must be clearly placed on the  
pump.  
5.5.2 Pump fitted with a stuffing box  
It is strictly forbidden to open switch  
cupboards, switch boxes, or all other live electric  
equipment. If it is necessary to open them in order  
to take readings, to carry out tests or adjustments  
for example, only a skilled technician may do them  
with adapted tools. Make sure that physical  
protection against electrical risks are used.  
5.5.3 Bearings  
If the pumps are working in a potentially  
explosive atmosphere, temperature or vibration  
monitoring at the bearings is recommended.  
If bearing temperatures are to be monitored it is  
essential that a benchmark temperature is  
recorded at the commissioning stage and after the  
bearing temperature has stabilized.  
If the pump has a packed gland there must be  
some leakage from the gland. Gland nuts should  
initially be finger tight only. Leakage should take  
place soon after the stuffing box is pressurized. If  
no leakage takes place the packing will begin to  
overheat. If overheating takes place the pump  
should be stopped and allowed to cool before  
being restarted. When the pump is restarted it  
should be checked to ensure leakage is taking  
place at the packed gland.  
Record the bearing temperature (t) and the  
ambient temperature (ta)  
Estimate the likely maximum ambient  
temperature (tb)  
Set the alarm at (t+tb-ta+5) C [(t+tb-ta+10) F]  
When adjusting an operating stuffing box  
(shield grids removed for this operation), the  
operator must be very careful. Safety gloves are  
compulsory and loose clothes are not allowed  
(above all to the arms) to avoid being caught by  
the pump shaft.  
and the trip at 100 C (212 F) for oil  
lubrication and 105 C (220 F) for grease  
lubrication  
It is important, particularly with grease lubrication,  
to keep a check on bearing temperatures. After  
start up the temperature rise should be gradual,  
reaching a maximum after approximately 1.5 to 2  
hours. This temperature rise should then remain  
constant or marginally reduce with time.  
The pump should be run for ten minutes with  
steady leakage and the gland nuts tightened by 10  
degrees at a time until leakage is reduced to an  
acceptable level.  
5.5.4 Normal vibration levels, alarm and trip  
For guidance, pumps generally fall under a  
classification for rigid support machines within the  
International rotating machinery standards and the  
recommended maximum levels below are based  
on those standards.  
The temperature of the gland should be checked  
after each round of tightening. If the temperature  
starts to climb rapidly then back off the gland nuts  
until the temperature drops down. Wait for the  
temperature to stabilize before tightening again.  
The leakage must not be reduced below a rate of  
20 drops per minute. Bedding in of the packing  
may take several hours.  
Alarm and trip values for installed  
pumps should be based on the actual  
measurements (N) taken on site on the bearing  
housings of the pump in the fully commissioned as  
new condition.  
Shield grids being removed during  
installation of the gland packing, it must be  
ensured that they are replaced as soon as this  
operation is completed.  
Page 19 of 28  
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MHP-TN USER INSTRUCTIONS ENGLISH 71576313 - 02/07  
The example (N) value is given for the preferred  
5.6.3 Shutdown > 1 month  
operating flow region (typically this may extend to  
70 to 120 % of the pump best efficiency point);  
outside the preferred flow region the actual  
a) Isolate motor.  
b) Avoid reverse rotation of the pump.  
c) Make sure that the discharge line pressure  
does not reach the foot valve.  
vibration experienced may be multiplied by up to 2.  
d) Close the outlet valve. Eventually close the  
inlet valve.  
These standard values can vary with the rotational  
speed and the power absorbed by the pump. For  
any special case, do not hesitate to consult us.  
Measuring vibration at regular intervals will then  
show any deterioration in pump or system  
operating conditions.  
e) Switch off external power supply,  
flushing/quench, cooling liquid.  
f) Keep the pump fully filled with water. In case  
of pumped liquid other than water, drain the  
pump entirely.  
g) Turn once per week the pump shaft of one or  
two turns.  
h) Never restart the pump without carrying out  
the verifications recommended before starting  
(see § 5.4.1).  
Horizontal  
Configuration  
mm/s (in./s) r.m.s.  
Vibration Velocity - unfiltered  
Normal  
Alarm  
N
5.6 (0.22)  
7.1 (0.28)  
11.2 (0.44)  
N x 1.25  
Shutdown Trip N x 2.0  
When ambient temperatures are  
likely to drop below freezing point, the pump and  
any cooling and flushing arrangements must be  
drained or otherwise protected.  
5.5.5 Stop/start frequency  
Pump sets are normally suitable for the number of  
equally spaced stop/starts per hour shown in the  
table below. Check actual capability of the driver  
and control/starting system before commissioning.  
5.6.4 Restarting in continuous running  
a) Ensure that the pump is completely full of  
liquid.  
Maximum stop/starts  
Motor rating kW (hp)  
per hour  
b) Ensure a continuous supply with a sufficient  
available NPSH.  
c) Ensure a backpressure so that the motor  
power is not in excess.  
Up to 15 (20)  
Between 15 (20) and 90 (120)  
90 (120) to 150 (200)  
Above 150 (200)  
15  
10  
6
Refer  
d)  
e)  
Respect the starting frequency  
imposed by the motor manufacturer.  
Where duty and standby pumps are installed it is  
recommended that they are run alternately every  
week.  
Protect the pump against water hammer  
when stopping or starting.  
5.6 Stopping and shutdown  
5.7 Hydraulic, mechanical and  
electrical duty  
According to hydraulic conditions of  
the installation and its automation degree, stop  
and restart procedures can have different forms.  
Nevertheless all of them must respect imperatively  
the following rules:  
This product has been supplied to meet the  
performance specifications of your purchase order,  
however it is understood that during the life of the  
product these may change. The following notes  
may help the user decide how to evaluate the  
implications of any change. If in doubt contact your  
nearest Flowserve office.  
5.6.1 Stopping < 1 hour  
a) Isolate motor.  
b) Avoid reverse rotation of the pump.  
c) Make sure that the discharge line pressure  
does not reach the foot valve.  
5.7.1 Specific gravity (SG)  
Pump capacity and total head in meters (feet) do  
not change with SG, however pressure displayed  
on a pressure gauge is directly proportional to SG.  
Power absorbed is also directly proportional to SG.  
It is therefore important to check that any change  
in SG will not overload the pump driver or over-  
pressurize the pump.  
5.6.2 Stopping < 1 month  
a) Isolate motor.  
b) Avoid reverse rotation of the pump.  
c) Make sure that the discharge line pressure  
does not reach the foot valve.  
d) Close the outlet valve. Eventually close the  
inlet valve.  
5.7.2 Viscosity  
For a given flow rate the total head reduces with  
increased viscosity and increases with reduced  
viscosity.  
e) Switch off external power supply,  
flushing/quench, cooling liquid.  
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MHP-TN USER INSTRUCTIONS ENGLISH 71576313 - 02/07  
Also for a given flow rate the power absorbed  
5.8.1 Cleaning prior to operation  
increases with increased viscosity, and reduces  
with reduced viscosity. It is important that checks  
are made with your nearest Flowserve office if  
changes in viscosity are planned.  
Pumps that are to be used for a food or drinking  
water application should be cleaned before being  
put into initial operation and after the installation of  
spare parts that are in contact with the liquid.  
5.7.3 Pump speed  
Cleaning once the pump has been commissioned  
will depend on the application and operating  
conditions. The user must ensure that the cleaning  
procedures are suitable for the application and  
operating conditions, and local regulations.  
Changing pump speed effects flow, total head,  
power absorbed, NPSHR, noise and vibration.  
Flow varies in direct proportion to pump speed,  
head varies as speed ratio squared and power  
varies as speed ratio cubed. The new duty,  
however, will also be dependent on the system  
curve.  
6 MAINTENANCE  
6.1 General  
If increasing the speed, it is important therefore to  
ensure the maximum pump working pressure is  
not exceeded, the driver is not overloaded, NPSHA  
> NPSHR, and that noise and vibration are within  
local requirements and regulations.  
If a belt drive is used, the assembly and  
tension of the belts must be verified during regular  
maintenance procedure.  
In dirty or dusty environments, regular checks  
must be made and dirt removed from areas around  
close clearances, bearing housings and motors.  
5.7.4 Net positive suction head (NPSHA)  
NPSH available (NPSHA) is the head available at  
the impeller inlet, above the vapor pressure of the  
pumped liquid.  
It is the plant operator's responsibility to  
ensure that all maintenance, inspection and  
assembly work is carried out by authorized and  
qualified personnel who have adequately  
familiarized themselves with the subject matter by  
studying this manual in detail (see also section  
1.6.2).  
NPSH required (NPSHR) is the minimum head  
required at the impeller inlet, above the vapor  
pressure of the pumped liquid, to avoid excessive  
cavitation and extreme performance degradation.  
It is important that NPSHA > NPSHR. The margin  
between NPSHA > NPSHR should be as large as  
possible.  
Any work on the machine must be performed when  
it is at a standstill. It is imperative that the  
procedure for shutting down the machine is  
followed, as described in section 5.6.  
If any change in NPSHA is proposed, ensure these  
margins are not significantly eroded. Refer to the  
pump performance curve to determine exact  
requirements particularly if flow has changed.  
On completion of work all guards and safety  
devices must be re-installed and made operative  
again. Before restarting the machine, the relevant  
instructions listed in section 5, Commissioning,  
start up, operation and shut down must be  
observed.  
If in doubt please consult your nearest Flowserve  
office for advice and details of the minimum  
allowable margin for your application.  
5.7.5 Pumped flow  
Oil and grease leaks may make the ground  
slippery. Machine maintenance must always  
begin and finish by cleaning the ground and  
the exterior of the machine.  
Flow must not fall outside the minimum and  
maximum continuous safe flow shown on the  
pump performance curve and or data sheet.  
5.8 Pumps for Food Use or Potable  
Water  
If the pump has not been specifically ordered for a  
food or drinking water application it must not be  
used for these types of applications. If it has been  
ordered for this type of application the following  
recommendations are to be followed.  
If platforms, stairs and guardrails are required for  
maintenance, they must be placed for easy access  
to areas where maintenance and inspection are to  
be carried out. The positioning of these  
accessories must not limit access or hinder the  
lifting of the part to be serviced.  
Page 21 of 28  
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MHP-TN USER INSTRUCTIONS ENGLISH 71576313 - 02/07  
When air or compressed inert gas is used in the  
k) Check dirt and dust is removed from areas  
around close clearances, bearing housings  
and motors.  
l) Check coupling alignment and re-align if  
necessary.  
maintenance process, the operator and anyone in  
the vicinity must be careful and have the  
appropriate protection.  
Do not spray air or compressed inert gas on skin.  
m) Verify the correct operation of the system.  
Do not direct an air or gas jet towards other  
people.  
The equipment used for maintenance and  
disassembly in an ATEX zone must be in  
conformity with the requirements zone.  
Never use air or compressed inert gas to clean  
clothes.  
Our specialist service personnel can help with  
preventative maintenance records and provide  
condition monitoring for temperature and vibration  
to identify the onset of potential problems.  
Before working on the pump, take measures to  
prevent an uncontrolled start. Put a warning board  
on the starting device with the words:  
"Machine under repair: do not start".  
If any problems are found the following sequence  
of actions should take place:  
With electric drive equipment, lock the main switch  
open and withdraw any fuses. Put a warning board  
on the fuse box or main switch with the words:  
"Machine under repair: do not connect".  
a) Refer to section 7, Faults; causes and  
remedies, for fault diagnosis.  
b) Ensure equipment complies with the  
recommendations in this manual.  
c) Contact Flowserve if the problem persists.  
Never clean equipment with inflammable solvents  
or carbon tetrachloride.  
6.2.1 Standard maintenance  
Protect yourself against toxic fumes when using  
cleaning agents.  
Roller bearing  
The bearing housings are provided with sealed for  
life ball bearings. No maintenance is required.  
6.2 Maintenance schedule  
6.2.2 Routine inspection (daily/weekly)  
It is recommended that a maintenance plan  
and schedule is adopted, in line with these User  
Instructions. It should include the following:  
a) The pump must be completely vented and  
drained and rendered inert before any  
disassembly operation.  
b) Any auxiliary systems installed must be  
monitored, if necessary, to ensure they  
function correctly.  
The following checks should be  
made and the appropriate action taken to remedy  
any deviations:  
a) Check operating behavior. Ensure noise,  
vibration and bearing temperatures are  
normal.  
b) Check that there are no abnormal fluid or  
lubricant leaks (static and dynamic seals) and  
that any sealant systems (if fitted) are full and  
operating normally.  
c) Pump fitted with a stuffing box: leakage of 20  
drops per minute.  
d) Pump fitted with a mechanical seal: no  
leakage.  
e) Check the level and condition of oil lubricant.  
On grease lubricated pumps, check running  
hours since last recharge of grease or  
complete grease change.  
c) During cleaning of the pump ensure the  
compatibility between the cleaning products  
and the gaskets.  
d) Verify the condition of the gaskets.  
e) Gland packings must be adjusted correctly to  
give visible leakage and concentric alignment  
of the gland follower to prevent excessive  
temperature of the packing or follower.  
Mechanical seals should present no leakage.  
f) Check for any leaks from gaskets and seals.  
The correct functioning of the shaft seal must  
be checked regularly.  
6.2.3 Periodic inspection (six monthly)  
g) Check bearing lubricant level, and if the hours  
run show a lubricant change is required.  
h) Check that the duty condition is in the safe  
operating range for the pump.  
i) Check vibration, noise level and surface  
temperature at the bearings to confirm  
satisfactory operation.  
a)  
Check foundation bolts for  
security of attachment and corrosion.  
b) Check pump-running records for hourly usage  
to determine if bearing lubricant requires  
changing.  
c) The coupling should be checked for correct  
alignment and worn driving elements.  
j) Check the tightness of the connections.  
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MHP-TN USER INSTRUCTIONS ENGLISH 71576313 - 02/07  
SETTING OF PACKING  
If a check shows a bad running of the  
motor pump unit, the user must:  
Follow the instructions:  
a) Assemble of the packing in S.  
b) Stagger by about 90° between two rings.  
c) Assemble packing after packing.  
a)  
Refer to the "fault finding chart" chapter  
7 of this leaflet to apply the recommended  
solutions.  
After setting the last packing ring, secure the  
packing with the gland and tighten the nut by  
hand.  
b) Ensure that your equipment corresponds to  
the arrangements of this leaflet.  
c) Contact Flowserve after-sales Department if  
the problem persists.  
After tightening, the shaft should turn by hand as  
easily as before the setting of the packing.  
6.2.4 Gland packing  
6.2.4.1 Pump fitted with a packed gland  
A well run in and correctly adjusted packing gland  
requires little maintenance. If, after some time, the  
leakage becomes too great, the gland should be  
tightened again in order to return these to a normal  
level.  
If re-tightening is not possible, new packing must  
be installed.  
6.2.4.2 Gland packing inspection and removal  
a) Remove the shield guards.  
b) Slide back the gland.  
c) Remove the packing rings with an extractor  
designed for this purpose (including the  
lantern ring if it exists; note its position and its  
direction of rotation).  
D  
D1  
A x A  
Nb x length  
in mm  
mm  
(in.)  
mm  
(in.)  
mm  
(in.)  
(in.)  
d) Inspect the state of the sleeve surface; the  
presence of many marked grooves will  
indicate that it must be replaced.  
55  
(2.17)  
76  
(2.99)  
10  
(0.39)  
4 x 207  
(4 x 8.15)  
e) Carefully clean the different pieces of the  
packing gland.  
6.2.5 Internal coating  
If the pump has an internal coating, this coating  
must be inspected periodically. Any wear or cracks  
of the coating found must be immediately repaired.  
6.2.4.3 Gland packing fitting  
If the packing is supplied as cord the packing must  
be cut so that the external diameter is lightly  
tightened and there is an initial gap between the  
sleeve and the packing ring.  
Failure to do this may lead to accelerated wear of  
the coating during operation and corrosion of the  
exposed base metal, depending on the material  
and pumped liquid.  
For that purpose, wind the packing helically around  
the shaft sleeve or a chuck of the same diameter.  
(Take precautions to avoid damaging sleeve).  
Special attention must be paid to the coating  
edges. Any loss of coating material is considered  
to be normal wear and tear on the pump and is not  
considered as warranty.  
Flowserve has applied the coatings according to  
the supplier's instructions but will not be held  
responsible for coating wear or cracks that may  
develop over time.  
Example of straight cut  
Example of bevel cut  
Ensure a tightening on the stuffing  
box housing and not on the sleeve.  
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MHP-TN USER INSTRUCTIONS ENGLISH 71576313 - 02/07  
6.3 Spare parts  
FLOWSERVE  
6.3.1 Ordering of spares  
After-sales Service  
Flowserve keeps records of all pumps that have  
been supplied. When ordering spares the following  
information should be quoted:  
1) Pump serial number.  
Tel.: 02 43 40 57 57  
(33) 2 43 40 57 57  
Fax.: 02 43 40 58 17  
(33) 2 43 40 58 17  
2) Pump size.  
3) Part name  
4) Part number  
5) Number of parts required.  
According to the After-sales Service instructions,  
disassembly will be limited to the dismantling of  
the pump.  
The pump size and serial number are shown on  
the pump nameplate.  
a)  
DISCONNECT THE UNIT  
FROM POWER.  
b) Close the inlet valve (if fitted) and outlet valve.  
c) Wait for the moment when the pump casing is  
cooled and at ambient temperature.  
To ensure continued satisfactory operation,  
replacement parts to the original design  
specification should be obtained from Flowserve.  
d)  
DRAIN PUMP.  
Any change to the original design specification  
(modification or use of a non-standard part) will  
invalidate the pump’s safety certification.  
e) Dismantle inlet and outlet pipeworks as well as  
all pipeworks.  
f)  
REMOVE PUMP TAKING INTO  
ACCOUNT SAFETY (§ 1) AND HANDLING  
(§ 2.2) PROCEDURES.  
6.3.2 Storage of spares  
Spares should be stored in a clean dry area away  
from vibration. Inspection and re-treatment of  
metallic surfaces (if necessary) with preservative is  
recommended at 6 monthly intervals.  
ANY DISASSEMBLY, REPAIR OR  
REASSEMBLY WILL BE CARRIED OUT UNDER  
FLOWSERVE' RESPONSABILITY, EITHER  
DIRECTLY BY THE AFTER-SALES SERVICE  
OR BY OTHER FLOWSERVE-AGENTS WHO  
WILL GET THE REQUIRED INSTRUCTIONS  
AND APPROVALS. THIS IS THE CASE OF  
AUTHORIZED REPAIRERS WHOSE  
6.4 Recommended spares and  
consumable items  
[1500], [2250], [3011], [4130], [4590-01], [4590-  
02], [4590-03]  
ADDRESSES AND TELEPHONE NUMBERS  
WILL BE GIVEN ON REQUEST.  
a) Destroy all the gaskets after dismantling,  
replace them when reassembling.  
b)  
It is recommended that  
bearings are not reused after any removal  
from the shaft.  
c) After serving during two years, replace the  
gland packing.  
6.5 Disassembly  
Refer to section 1.6, Safety, and section 6  
Maintenance, before dismantling the pump.  
Before dismantling the pump for  
overhaul, ensure genuine Flowserve replacement  
parts are available. Refer to sectional drawings for  
part numbers and identification.  
REPAIR OF THE PUMP  
If the pump presents abnormalities or a  
persistent malfunction, contact immediately:  
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MHP-TN USER INSTRUCTIONS ENGLISH 71576313 - 02/07  
7 FAULTS; CAUSES AND REMEDIES  
Insufficient flow rate  
Irregular pump running  
Driver overloaded  
Mechanical seal leak  
Equipment vibration  
Excessive pump casing temperature  
SOLUTIONS  
POSSIBLE CAUSES  
Pump or suction pipe not completely filled  
- Check and complete filling  
Air bubbles in pipes  
Suction level too low  
- Check and desecrate the pipes  
- Check: the available NPSH > the required NPSH  
- Reduce geometrical suction lift  
- Reduce head losses in pipes and in fittings (diameter increase  
and appropriate fitting positions)  
- Check valves and strainers  
- Check the immersion head of the suction valve  
Wrong rotation  
- Reverse 2 phases on motor terminal boxes  
The motor is running on 2 phases only  
Motor running too low  
- Check and control the motor electrical power supply  
- Check the connection in the terminal box according to the  
voltage  
Total manometric head system higher than  
pump differential head  
- Check the discharge head  
- Check the head losses in discharge pipes (partly closed valve,  
foreign particles, back pressure too high)  
- Modify the installation or change the pump set  
Total manometric head system lower than  
pump differential head  
-Throttle at discharge valve or trim the impeller (contact our  
local agent): CONSULT FLOWSERVE  
Pipes (valves, filter...)  
Insufficient flow rate  
- Control, dismantle and clean  
- Check the suction and discharge pipes (valves, back  
pressure)  
Worn wear-ring surfaces  
Seizure, jamming  
- Foresee pump mending. CONSULT FLOWSERVE  
- CONSULT FLOWSERVE  
Excessive strains on flanges  
- Check the flange connections and eliminate strains (pipe  
positioning or elastic sleeves mounting)  
Defective gland packing on the shaft  
- Check and replace all the gland-packing parts.  
- Mechanical seal: CONSULT FLOWSERVE  
- CONSULT FLOWSERVE  
Defective motor bearings  
Specific gravity or viscosity of liquid too high  
Misalignment  
- Consult our local agent to analyze the problem  
- Check the alignment of the pump and of its driver  
Foundations not sufficiently rigid  
- Check the setting of base plates: tightening, bad adjustment,  
seal  
Insufficient pressure  
Pump looses prime after starting  
POSSIBLE CAUSES  
SOLUTIONS  
Rotation speed too low (check the driver)  
- Check the connection in the terminal box according to the  
voltage  
   
Presence of air  
- Check and de-aerate  
Suction pressure insufficient  
Mechanical defects  
- Check: the available NPSH > the required NPSH  
- CONSULT FLOWSERVE  
- Check suction pipe is airtight  
- Check diameter of suction pipe  
Air leak in the suction pipe  
Restriction in suction pipe  
Suction level too low  
- Check the NPSH >NPSH  
- Reduce geometrical suction lift  
- Reduce head losses in pipes and in fittings (diameter increase  
and appropriate fitting positions)  
- Check valves and strainers  
- Check the immersion head of the suction valve  
Obstruction of suction pipe  
- Check condition of pipe  
Defective gland packing on the shaft  
- Check and replace all the gland packing.  
- Mechanical seal: CONSULT FLOWSERVE  
Defective gasket  
- CONSULT FLOWSERVE  
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MHP-TN USER INSTRUCTIONS ENGLISH 71576313 - 02/07  
8 PARTS LIST AND DRAWINGS  
8.1 Sectional drawings  
9331  
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MHP-TN USER INSTRUCTIONS ENGLISH 71576313 - 02/07  
8.2 Sectional drawings part list  
8.3 General arrangement drawing  
The typical general arrangement drawing and any  
specific drawings required by the contract will be sent  
to the Purchaser separately unless the contract  
specifically calls for these to be included into the User  
Instructions. If required, copies of other drawings  
sent separately to the Purchaser should be obtained  
from the Purchaser and retained with these User  
Instructions.  
ITEM  
DESIGNATION  
Pump casing  
1110  
1221  
1500  
2110  
2250  
2450  
2540  
2905  
2912  
Casing cover with stuffing box  
Wear ring  
Pump shaft  
9 CERTIFICATION  
Radial flow impeller  
Shaft sleeve  
Certificates determined from the Contract  
requirements are provided with these instructions  
where applicable. Examples are certificates for CE  
marking, ATEX marking etc. If required, copies of  
other certificates sent separately to the Purchaser  
should be obtained from the Purchaser for retention  
with these User Instructions.  
Thrower  
Plain washer  
Self-braked nut  
10 OTHER RELEVANT  
DOCUMENTATION AND MANUALS  
3011  
3134  
3200  
3260  
3300  
4120  
Radial ball bearing  
Support foot  
Bearing housing  
Bearing cover  
Bearing bush  
Gland  
10.1 Supplementary User Instructions  
Supplementary instructions such as for a driver,  
instrumentation, controller, seals, sealant system etc  
are provided as separate documents in their original  
format. If further copies of these are required they  
should be obtained from the supplier for retention  
with these User Instructions.  
4130  
4132  
Gland packing  
Stuffing box neck bush  
Gasket  
10.2 Change notes  
If any changes, agreed with Flowserve, are made to the  
product after its supply, a record of the details should  
be maintained with these User Instructions.  
4590-01  
4590-02  
4590-03  
6511  
Gasket  
10.3 Additional sources of information  
Reference 1:  
NPSH for Rotor dynamic Pumps: a reference guide,  
Euro pump Guide No. 1, Euro pump & World Pumps,  
Elsevier Science, United Kingdom, 1999.  
Special ring  
Priming plug  
Drain plug  
Bore circlip  
Screwed plug  
Stud  
6515  
6544  
Reference 2:  
Pumping Manual, 9th edition, T.C. Dickenson,  
Elsevier Advanced Technology, United Kingdom, 1995.  
6569  
6572  
Reference 3:  
Pump Handbook, 2nd edition, Igor J. Karassik et al,  
McGraw-Hill Inc., New York, 1993.  
6577-01  
6577-02  
6577-03  
6581  
Hexagon bolt  
Hexagon bolt  
Hexagon bolt  
Hexagon nut  
Key  
Reference 4:  
ANSI/HI 1.1-1.5, Centrifugal Pumps - Nomenclature,  
Definitions, Application and Operation.  
6700-01  
6700-02  
9331  
Reference 5:  
ANSI B31.3 - Process Piping.  
Key  
Cover plate  
Page 27 of 28  
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MHP-TN USER INSTRUCTIONS ENGLISH 71576313 - 02/07  
FLOWSERVE REGIONAL  
SALES OFFICES:  
Your Flowserve factory contacts:  
USA and Canada  
Flowserve Corporation  
5215 North O’Connor Blvd.,  
Suite 2300  
Irving, Texas 75039-5421 USA  
Telephone 1 972 443 6500  
Fax 1 972 443 6800  
Europe, Middle East, Africa  
Worthing S.P.A.  
Flowserve Corporation  
Via Rossini 90/92  
Flowserve Pompes  
13, rue Maurice Trintignant  
72234 Arnage Cedex, France  
20033 Desio (Milan) Italy  
Telephone 39 0362 6121  
Fax 39 0362 303396  
Telephone (24 hours): +33 2 43 40 58 47  
Sales & Admin: +33 2 43 40 57 57  
Repair & Service Fax: +33 2 43 40 58 17  
Latin America and Caribbean  
Flowserve Corporation  
6840 Wynnwood Lane  
Houston, Texas 77008 USA  
Telephone 1 713 803 4434  
Fax 1 713 803 4497  
Local Flowserve factory representatives:  
North America:  
Flowserve Pump Division  
5310 Taneytown Pike, PO Box 91  
Taneytown, MD 21787-0091, USA  
Asia Pacific  
Flowserve Pte. Ltd  
200 Pandan Loop #06-03/04  
Pantech 21  
Telephone:  
Customer Service FAX: +1 (410) 756 2615  
Parts inquiry/Order PH: +1 (800) 526 3569  
+1 (410) 756 2602  
Singapore 128388  
Telephone 65 6775 3003  
Fax 65 6779 4607  
South America:  
Flowserve do Brasil Ltda  
Av. Don Helder Camara, 5451  
20771-001 Rio de Janerio, Brasil  
Telephone:  
Fax:  
+55-21-2108-4000  
+55-21-2108-4184  
To find your local Flowserve representative please  
use the Sales Support Locator System found at  
www.flowserve.com  
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