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  4. Pneumatic PFA PTFE lined Globe Control V
  • Pneumatic PFA PTFE lined Globe Control Valve
  • Pneumatic PFA PTFE lined Globe Control Valve
  • Pneumatic PFA PTFE lined Globe Control Valve
Pneumatic PFA PTFE lined Globe Control ValvePneumatic PFA PTFE lined Globe Control ValvePneumatic PFA PTFE lined Globe Control Valve

Pneumatic PFA PTFE lined Globe Control Valve

  • Nominal size: DN20~200,、 NPS 3/4〞~ 8〞
  • Nominal pressure: PN16 ~ 100、 CLASS 150LB ~ 600LB
  • Pneumatic PFA PTFE lined globe control valve Bonnet type: Ⅰ:standard type(-29℃~150℃)
  • Actuator: Pneumatic: multi-spring diaphragm actuator, piston type actuator.
  • Pneumatic PFA PTFE lined Globe Control Valve,lined Globe Control Valve,PFA lined Control Valve
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    Description

    Pneumatic PFA PTFE lined Globe Control Valve

    Pneumatic PFA PTFE lined globe control valve Features as below:
    1. Good corrosion resistance: the inner cavity of  Pneumatic PFA PTFE lined globe control valve body, core, seat are lined with 3mm thick fluorine (PTFE,PEP,PFA) , which can withstand strong corrosive fluid.
    2. Good sealing performance: double sealing with PTFE bellows and packing.
    3. The leakage quantity is little, because the Pneumatic PFA PTFE lined globe control valve core and seat are soft seal, leakage was far below the national Ⅳ level standard.

    4. High adjustment accuracy: Pneumatic PFA PTFE lined globe control valve adopts precise and small pneumatic and electric actuators, small in size and light in weight.


    • PNEUMATIC PFA PTFE LINED GLOBE CONTROL VALVE SPECIFICATION

      Pneumatic PFA PTFE lined globe control valve Body type: straight through casting globe type
      Fluoride (PTFE,FEP,PFA) lined
      Spool type: non-balanced single seat plug type
      Nominal size: DN20~200,、 NPS 3/4〞~ 8〞
      Nominal pressure: PN16 ~ 100、 CLASS 150LB ~ 600LB
      Connection: flange: FF、RF、MF、RTJ
      Welding: SW、BW
      Flange dimension: According to to IEC 60534
      Pneumatic PFA PTFE lined globe control valve Bonnet type: Ⅰ:standard type(-29℃~150℃)
      Packing: V type PFTE packing, flex. graphite packing, etc.
      Gasket: Metal graphite packing
      Pneumatic PFA PTFE lined globe control valve Actuator: Pneumatic: multi-spring diaphragm actuator, piston type actuator.
    • PNEUMATIC PFA PTFE LINED GLOBE CONTROL VALVE STRUCTURE


    • PNEUMATIC PFA PTFE LINED GLOBE CONTROL VALVE MATERIAL

      Component name Control Valve Material
      Body/Bonnet WCB/CF8/CF8M/CF3M+PFA/PTFE
      Lined Material PTFE,FEP,PFA
      Control Valve spool/Seat 304/316/316L Lined PTFE/FEP/PFA
      Packing PTFE
      Gasket PTFE
      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 PFA PTFE LINED GLOBE CONTROL VALVE PERFORMANCE

      Pneumatic PFA PTFE lined globe control valve Flow characteristic Linear, percentage, quick open
      Allowable range 30: 1
      Rated Cv value Percentage CV6.3~400 ,linear CV6.9~440
      Pneumatic PFA PTFE lined globe control valve
      Allowable leakage
      Soft seal:  VI grade(foam grade)
      Leakage standard:  GB/T 4213
      Pneumatic PFA PTFE lined globe 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 PFA PTFE LINED GLOBE CONTROL VALVE ACTUATOR PARAMETER

      Pneumatic PFA PTFE lined globe 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 PFA PTFE lined globe control valveAccessories E/P, P/P valve positioner, filter regulator, valve converter, solenoid valve, limited switch
      Non-standard accessories, need special customized notes.
    • PNEUMATIC PFA PTFE LINED GLOBE CONTROL VALVE TECHNICAL PARAMETER

      Nominal size, DN 20 25 32 40 50 65 80 100 125 150
      Rated flow coefficient, Cv Percentage 8 12 20 32 50 70 100 200 240
      Linear 5 10 16 25 38 63 80 120 220 300
      Travel 16mm 25 mm 40mm 60mm
      Pneumatic actuator
      Diaphragm effective area, Ae (cm2)
      ZHA/B-22 ZHA/B-23 ZHA/B-34 ZHA/B-45
      350 350 560 900
      Action Spring range Pneumatic PFA PTFE lined globe control valve
      Max. allowable pressure difference(MPa)
      Air open 20-100KPa 1.16 0.7 0.44 0.28 0.18 0.17 0.11 0.07 0.07 0.05
      40-200 KPa 3.34 2.14 1.31 0.84 0.53 0.51 0.33 0.21 0.22 0.15
      80-240 KPa 6.4 4.99 3.05 1.95 1.25 1.18 0.78 0.5 0.51 0.36
      Air close 20-100KPa 2.23 2.14 0.87 0.56 0.35 0.34 0.22 0.14 0.15 0.1
      40-200 KPa 6.4 6.4 5.86 3.64 2.3 2.21 1.43 0.91 0.95 0.66
      80-240 KPa 6.4 6.4 6.4 5.04 3.18 3.06 1.98 1.26 1.32 0.92


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