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Address: NO.720, Suide Road, Jiading District,Shanghai, China.

Pneumatic boiler feedwater control valve


  • Port size:DN50~300, NPS 2〞~ 12〞
  • Pressure:PN25~32Mpa(1500~2500LB)
  • Medium:Water,steam
  • Temperature :-29~420℃
  • Body material:WCB
  • Description:
  • Pneumatic boiler feedwater control valve feature

    Pneumatic boiler feedwater control valve is a kind of high differential pressure control valve with the pressure balanced cage structure. The Pneumatic boiler feedwater control valve trim cage and plug adopt a mixed multi-hole and tandem structure. The fluids first pass the cage window for the first-stage throttling, and after three-stage continuous tandem throttling, flow velocity is effectively controlled at about 30m/s and cavitation damage is avoided. Electric boiler feedwater control valve has such features as high allowable differential pressure, good sealing performance, S type streamlined body channel, high flow, good dynamic stability of the control valve, etc. The throttling part is separable from the sealing face to effectively protect the sealing face. The Electric boiler feed water control valve  trim surface is subjected to hardening treatment, reaching a hardness of about HRC70. It is featured by good erosion resistance and long service life. As one of the important control valves in boiler feed water systems in thermal power plants, the Pneumatic boiler feedwater control valve can also be used for controlling fluids of high differential pressure in petroleum, chemical industry and other industrial and automatic control systems. The neumatic boiler feedwater control valve can be pneumatically or electrically controlled. 
  • Pneumatic boiler feedwater control valve parameter

    control valve Trim features: multi-level, multi-hole cage
    balanced trim structure
    Body type: straight-through type
    Bonnet type: standard type
    Flow characteristic: equal percentage
    control valve Size: DN25-50(1”-2”)
    Pressure class: PN25、32Mpa(ANSI 1500、2500LB)
    Leakage class: ASME B16.104 Ⅴ(standard type metal seat)
    Pipe connection type: flange type
    butt welding type
    Applicable temperature range: less than 420C°
    control valve Actuator type: pneumatic diaphragm actuator
    pneumatic piston actuator
    electric actuator

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