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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.
 

2 Way Pneumatic Pressure Control Valve

Model:

  • Port size:DN15~500, NPS 1/2〞~ 20〞
  • Pressure:PN16 ~ 100,150LB ~ 600LB
  • Medium:Water,oil,steam,gas
  • Temperature :-40~450℃
  • Body material:WCB LCB CF8 CF3 CF8M CF3M
  • Description:
  • 2 Way Pneumatic Pressure Control Valve Feature

    2 Way Pneumatic Pressure Control Valve adopts top guide structure, small size, light weight,compact design, competitive price;S streamline hydrodynamic fluid path, small pressure differential loss, large flow;2 Way Pneumatic Pressure Control Valve is compact structure, wide adjustable  range, high accuracy of flow control;Large guide area for valve spool, with excellent anti vibration feature;Pneumatic control valve is equipped with multi-spring diaphragm actuator, with small size &large output force feature;2 Way Pneumatic Pressure Control Valve is applicable for high temp, low temp & small pressure differential of front-after valve with requirement of high closure performance and reliability.
  • 2 Way Pneumatic Pressure Control Valve Specification

    Pneumatic control valve
    Body type:
    straight through casting globe type
    Spool type: non-balanced single seat plug type
    Nominal size:  NPS 1/2〞~ 12〞
    Nominal pressure: PN16 ~ 100、 CLASS 150LB ~ 600LB
    Connection: flange: FF、RF、MF、RTJ
    Welding: SW、BW
    Flange dimension: According to to IEC 60534
    2 Way Pneumatic Pressure Control ValveBonnet type: Ⅰ:standard type(-20℃~230℃)
    Ⅱ:Radiator type: (-45℃~ high than 230℃ occasion)
    Ⅲ:Low temperature extended type(-196℃~ -45℃)
    Ⅳ:Bellow seal type
    Ⅴ:Warm insulation Jacket type
    Packing: V type PFTE packing, flex. graphite packing, etc.
    Gasket: Metal graphite packing
    Actuator: Pneumatic: multi-spring diaphragm actuator, piston type actuator.
  • 2 Way Pneumatic Pressure Control Valve Structure

    2 Way Pneumatic Pressure Control Valve structure
  • 2 Way Pneumatic Pressure 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 Normal:-196~150℃ is PTFE,RTFE,>230℃ is 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
  • 2 Way Pneumatic Pressure Control Valve Performance

    2 Way Pneumatic Pressure 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)
    Soft seal:  VI grade(foam grade)
    Leakage standard:  GB/T 4213
    2 Way Pneumatic Pressure 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
  • 2 Way Pneumatic Pressure Control Valve actuator parameter

    Control Valve Type\ Method Pneumatic diaphragm actuator
    ZH23~ZH56
    Multi-spring type
    Usage Regulating type, ON-OFF type
    Air supply pressure or Power supply voltage Air supply pressure (Spring range)
    140(20~100)Kpa G
    240 (40~200) Kpa G
    280 (80~240) Kpa G
    Connector Air pipe connector: RC1/4
    Direct action Pressure increase, stem descend, valve close.
    Reaction Pressure increase, stem ascend, valve open.
    Input signal 40~20mA.DC(with positioner)
    Lag ≤1%FS(with positioner) 
    Linear type 2%FS(with positioner)
    Environmental temperature -10℃~+70℃
    Pneumatic control valve
    Accessories
    E/P, P/P valve positioner, filter regulator, valve converter, solenoid valve, limited switch
    Non-standard accessories, need special customized notes.
     

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