Bryan Boilers DTA 250 User Manual

Form No. 6440  
(5/00)  
TM  
BRYAN STEAM  
Separable Tank Tray Type Boiler Feedwater Deaerators  
Capacities 70,000 to 300,000 PPH (2030 to 8695 BHP)  
Performance Features  
• Oxygen removal to .005 cc/l (7 PPB)  
• CO2 removal to 0% measurable  
• Reduce chemical costs  
• Reduce boiler and system corrosion  
• Pre-heat boiler feedwater  
• Improve boiler efficiency  
• Quick equipment payback, compared  
to chemical oxygen removal  
Construction Features  
• Constructed to ASME Section VIII,  
Division I for 50 PSIG  
• Hinged tray access door  
• Standard 10 minutes deaerated water storage  
• Easily accessible manway in storage tank  
• All internal surfaces that contact  
undeaerated water are constructed of type  
304L stainless steel  
• Internal direct contact vent condenser  
for minimum steam loss  
• Structural steel stand/pump platform  
• 2-stage deaeration  
• Available as completely packaged unit  
including pumps and control panel  
175,000 PPH  
unit shown  
Stainless Steel Vent Pipe  
Vented to Atmosphere  
The Bryan tray type deaerator is unsurpassed in  
performance and reliability. These units are  
Stainless Steel  
Internal Vent Condenser  
ASME Code pressurized units, and are guaran-  
teed to deliver deaerated water at a maximum  
Stainless Steel  
Spray Tube  
oxygen content of .005cc/l (7PPB) and zero  
measurable CO2. All internal surfaces that  
come in contact with undeaerated water are  
Welded Stainless  
Steel Trays  
Tray  
Access  
Door  
constructed of type 304L stainless steel for long  
life and low maintenance. Their long residence  
time makes them readily adaptable to all  
systems, even where wide load swings occur.  
A complete line of boiler feedpump and  
control packages is available making the Bryan  
tray deaerator a completely packaged unit  
ready for installation with the minimum amount  
of field assembly.  
Stainless Steel  
Tray Chamber  
Non-Condensable Gases (O2, Co2)  
Deaerated Water  
Steam  
Condensate Return  
and Water Make-up  
Deaerator Outlet  
to Storage Tank  

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