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SHANGHAI HUIXUAN VALVE

Mobile:+86-17717520739
Wechat:17717520739
Email:info@shxvalve.com

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

Pneumatic high temperature control valve

Model:

  • Port size:DN25~300, NPS 1〞~ 12〞
  • Pressure:PN16 ~ 100,150LB ~ 600LB
  • Medium:Steam
  • Temperature :-20~450℃
  • Body material:WCB CF8 CF8M WC6 WC9
  • Description:
  • Pneumatic high temperature control valve feature

    Pneumatic high temperature control valve with spring pneumatic diaphragm actuator (or piston pneumatic actuator) which is a low flow resistance control valve, multi spring actuator of low height, light weight, simple equipment. Pneumatic high temperature control valve flow channel was streamlined S, the control valve has the advantages of compact structure, light weight, flexible action, small pressure drop loss, valve capacity, flow characteristics of precision, convenient maintenance, pneumatic high temperature control valve regulating mechanism adopts balanced valve plug valve structure, has good stability, not easy to vibration, low noise the temperature sensitivity, small. Pneumatic high temperature control valve is especially suitable for leakage requirements is not high, high temperature.

  • Pneumatic high temperature control valve Material 

    Component name Control Valve Material
    Body/Bonnet WCB/WCC/WC6/CF8/CF8M/CF3M
    Valve spool/Seat 304/316/316L(overlaying stellite alloy)
    Packing  flexible graphite
    Gasket Normal:Stainless steel with flexible graphite,Special:Metal tooth type gasket
    Diaphragm Cover Normal:Q235,Special:304
    Diaphragm NBR with reinforced polyester fabric
    Spring Normal:60Si2Mn,Special:50CrVa
    Control valve stem 2Cr13/17-4PH/304/316/316L
  • Pneumatic high temperature control valve Performance

    Pneumatic high temperature control valve
    Flow characteristic
    Linear, percentage, quick open
    Allowable range 50: 1 (CV<6.3 30: 1)
    Rated Cv value Percentage CV1.6~630 ,linear CV1.8~690
    Pneumatic control valve Allowable leakage Metal seal:  IV grade(0.01% rated capacity)
    Leakage standard:  GB/T 4213
    Pneumatic high temperature control valve Performance
    Intrinsic error % ±1.5
    Return difference, % ≤1.5
    Dead zone, % ≤0.6
    Difference from beginning to end point, % ±2.5
    Rated travel difference, % ≤2.5

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