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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 pressure angle control valve

Model:

  • Port size:DN20~100, NPS 3/4〞~ 8〞
  • Pressure:PN160 ~420,900LB ~ 2500LB
  • Medium:high pressure water,oil,steam
  • Temperature :-40~570℃
  • Body material:WCB LCB CF8 CF3 CF8M CF3M
  • Description:
  • Pneumatic high pressure angle control valve Feature

    Pneumatic high pressure angle control valve is a special valve for high pressure system.Pneumatic high pressure angle control valve is widely used for automatic adjustment and remote control of production process in chemical fertilizer, petrochemical, power station, light industry, etc.
    Pneumatic high pressure angle control valve adopts changing signal pressure to change the flow energy section of the control valve, so as to achieve the change of medium flow rate and complete the adjustment of required parameters (such as pressure, flow rate, temperature, liquid level, etc.).
     
    Pneumatic high pressure angle control valve structure is angular single seat type, and the valve core is plunger structure. It is used for chromizing the head of the valve core under high pressure difference conditions or inlaid with hard alloy to resist erosion and cavitation under high pressure conditions to improve service life.
  • Pneumatic high pressure angle control valve specification

     Pneumatic angle control valve  Body type: angle casting globe type
    Spool type: single seat,cage guiede
    Nominal size: DN20~200 NPS 3/4〞~ 8〞
    Nominal pressure: PN160 ~ 420、 CLASS 900LB ~ 2500LB
    Connection: flange: FF、RF、MF、RTJ
    Welding: SW、BW
    Flange dimension: According to to IEC 60534
    Pneumatic high pressure angle control valve Bonnet 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
    Control valve Actuator: Pneumatic:multi-spring diaphragm actuator, piston type actuator.
  • Pneumatic high pressure angle control valve structure

  • Pneumatic high pressure angle 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
    Bellow 304,316,316L
    Gasket Normal:Stainless steel with flexible graphite,Special:Metal tooth type gasket
    Stem 2Cr13/17-4PH/304/316/316L
    Diaphragm Cover Normal:Q235,Special:304
    Diaphragm NBR with reinforced polyester fabric
    Spring Normal:60Si2Mn,Special:50CrVa
  • Pneumatic high pressure angle control valve performance

    Pneumatic high pressure angle control valve Flow characteristic Linear, percentage
    Allowable range 50: 1 (CV<6.3 30: 1)
    Rated Cv value Percentage 1.6~630/ linear CV1.8~690
    Pneumatic high pressure angle control valve  
    Allowable leakage
    Metal seal:  IV grade(0.01% rated capacity)
    Soft seal: VI grade(foam grade)
    Leakage standard:  GB/T 4213
    Pneumatic angle 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
  • Pneumatic angle control valve special requirment

    Special test Material penetration flaw detection (PT), radiator test (RT), flow characteristic test,
    low temperature test.
    Special treatment Trim nitrogen treatment, seat hard alloy treatment.
    Special rinse Degreasing and dehydration treatment
    Special condition Special piping or connection, vacuum condition, S.S fastener, special coating.
    Special dimension Customized face to face length or dimension
    Test and inspection Third party test report
  • Pneumatic high pressure angle control valve actuator parameter

    Pneumatic high pressure angle 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 high pressure angle 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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