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  • Pneumatic steam three way control valve

Pneumatic steam three way control valve

  • Nominal size: DN20~300 NPS 3/4〞~ 12〞
  • Nominal pressure: PN16 ~ 100、 CLASS 150LB ~ 600LB
  • Body/Bonnet WCB/WCC/WC6/CF8/CF8M/CF3M
  • Temperature :-29~450℃
  • Pneumatic steam three way control valve,three way control valve
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    Description

    Pneumatic steam three way control valve


    1. Pneumatic steam three way control valve is compact structure, light weight, sensitive action, low pressure drop loss, new high allowable pressure, large valve capacity, accurate flow characteristics and convenient maintenance, etc.,
    2. Pneumatic steam three way control valve can be used for various working conditions, especially for the temperature control system of oil industry heat exchange and automatic control of other industries.
    3. Spool structure with side guiding, well stability, no vibration, low noisy, Pneumatic steam three way control valve can bear high pressure difference, easy for connection.
    4. While with low nominal size and pressure difference,Pneumatic steam three way control valve can be used in diverting occasion. However, while nominal size higher than DN100 and high pressure difference,mixting control valve and divertinging control valve can’t be exchanged.
    • PNEUMATIC STEAM THREE WAY CONTROL VALVE SPECIFICATION

      Pneumatic  three way control valve Body type: three way casting globe type
      Spool type: three way double seat spool
      Nominal size: DN20~300 NPS 3/4〞~ 12〞
      Nominal pressure: PN16 ~ 100、 CLASS 150LB ~ 600LB
      Connection: flange: FF、RF、MF、RTJ
      Welding: SW、BW
      Flange dimension: According to to IEC 60534
      Pneumatic diverting three way 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
      Pneumatic Control valve Actuator: Pneumatic:multi-spring diaphragm actuator, piston type actuator.
    • PNEUMATIC STEAM THREE WAY 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 STEAM  THREE WAY CONTROL VALVE FLOW DIRECTION


    • PNEUMATIC STEAM THREE WAY CONTROL VALVE PERFORMANCE

      Pneumatic three way control valve Flow characteristic Linear, percentage
      Allowable range 30: 1
      Rated Cv value Percentage / linear CV8.5~1280
      Pneumatic control valve
      Allowable leakage
      Metal seal:  IV grade(0.01% rated capacity)
      Leakage standard:  GB/T 4213
      Pneumatic steam three way 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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