Control Valve,API 6A Valve,API 6D Valve-Cepai Group
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CEPAI GROUP CO., LTD.

Mobile:+86-17717522891
Wechat:17717522891
Tel:+86-21-54891500
Email:aires@cepai.com 

Headquarter: 15F, NO.2281, West Zhongshan Road, Shanghai, China.
Factory: No.333 West Jianshe Road, Jinhu Industrial Park, Huaian City, Jiangsu Province, China

Pneumatic finned bonnet high temperature control valve

Model:

  • Port size:DN20~300, NPS 3/4〞~ 12〞
  • Pressure:PN16 ~ 100,150LB ~ 600LB
  • Medium:Water,oil,steam,gas
  • Temperature :-40~450℃
  • Body material:WCB WC6 WC9 CF8 CF8M or others
  • Connection:
  • Position type:Fail close
  • Characteristic:Linear, Equal percentage
  • Voltage:Depond on accessories
  • Other:
  • Pneumatic finned bonnet high temperature control valve feature

    Pneumatic finned bonnet high temperature control valve is finned bonnet design for high temperature to radiate, Pneumatic finned bonnet 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 finned bonnet 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 finned bonnet 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. High temperature pneumatic control valve is especially suitable for leakage requirements is not high, high temperature.
     

  • Pneumatic finned bonnet high temperature control valve Bonnet structure

    Pneumatic finned bonnet high temperature control valve structure
  • Pneumatic finned bonnet 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 finned bonnet high temperature control valve Performance

    Pneumatic finned bonnet 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 high temperatyre control valve Allowable leakage Metal seal:  IV grade(0.01% rated capacity)
    Leakage standard:  GB/T 4213
    Pneumatic finned bonnet 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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