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Pneumatic Boiler Blowdown Control Valves

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Pneumatic Boiler Blowdown Control Valves

Pneumatic boiler blowdown control valve is a kind of anti-cavitation multi-stage pressure reduction valve. The specially designed trim of the pneumatic boiler blowdown control valve enables fluid pressure reduction stage by stage, so that fluid velocity is controlled and cavitation damage is avoided.

Additional information

Size:

1'' ~ 2'', NPS1 ~ NPS2

ANSI Class:

1500 ~ 2500LB

Temperature Range:

-29~420℃

Description

Pneumatic boiler blowdown control valve is a kind of anti-cavitation multi-stage pressure reduction valve. The specially designed trim of the pneumatic boiler blowdown control valve enables fluid pressure reduction stage by stage, so that fluid velocity is controlled and cavitation damage is avoided. The throttling part is separable from the sealing face to effectively protect the sealing face. The Pneumatic boiler blowdown control valve trim surface is subjected to hardening treatment, reaching a hardness of about HRC70. Pneumatic boiler blowdown control valve is featured by good erosion resistance and long service life. A large notch is opened on the plug surface so that the plug will not be blocked if the fluids contain granules. The Pneumatic boiler blowdown control valve is an ideal solution to the intermittent elimination of indissoluble sediments and impurities in boiler water in power plants.

Specifications:

Port size:DN25~50, NPS 1〞~ 2〞
Pressure:PN25~32Mpa(1500~2500LB)
Medium:Water, Steam, Gas
Temperature: -29~420℃
Body material:A105
Connection:SW, BW, or Flange
Failure Position:FC(fail to close), FO(fail to open), On-off
Characteristic:Linear, Equal Percentage
Actuator:Pnumatic Diaphragm or Piston/Cylinder Actuator

Futures:

Trim type:Top guided unbalanced trim structure, multi-stage control valve plug structure
Body type:Straight-through type, angle type
Bonnet type:Standard type,  extend bonnet type
Flow characteristic:Equal percentage, linear, quick open
Leakage class:ASME B16.104 V(standard type metal seat)
Connection type:Flange type, butt welding type
Applicable temperature range:Less than 420C°
Control valve Actuator type:Pneumatic diaphragm actuator, pneumatic piston actuator, or electric actuator

 

Additional information

Size:

1'' ~ 2'', NPS1 ~ NPS2

ANSI Class:

1500 ~ 2500LB

Temperature Range:

-29~420℃

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