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  4. ZJHP Pneumatic Single Seat Control Valve
  • ZJHP Pneumatic Single Seat Control Valve, WCB/WCC/WC6/CF8/CF3
  • ZJHP Pneumatic Single Seat Control Valve, WCB/WCC/WC6/CF8/CF3
  • ZJHP Pneumatic Single Seat Control Valve, WCB/WCC/WC6/CF8/CF3
  • ZJHP Pneumatic Single Seat Control Valve, WCB/WCC/WC6/CF8/CF3
ZJHP Pneumatic Single Seat Control Valve, WCB/WCC/WC6/CF8/CF3ZJHP Pneumatic Single Seat Control Valve, WCB/WCC/WC6/CF8/CF3ZJHP Pneumatic Single Seat Control Valve, WCB/WCC/WC6/CF8/CF3ZJHP Pneumatic Single Seat Control Valve, WCB/WCC/WC6/CF8/CF3

ZJHP Pneumatic Single Seat Control Valve, WCB/WCC/WC6/CF8/CF3

  • Product Item:ZJHP
  • Design & manufacturing: GB/T 12221-2005
  • Flanged ends: GB/T 9113.1-2000, ANSI 16.5, JIS B2201
  • Face to face: GB/T 12221-2005
  • Materials: cast iron (GG25), carbon steel (WCB), stainless steel 304(CF8), stainless steel 316(CF8M)
  • ZJHP Pneumatic Single Seat Control Valve , Control Valve , Pneumatic Control Valve
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    Description

    ZJHP Pneumatic Single Seat Control Valve, WCB/WCC/WC6/CF8/CF3

    • PNEUMATIC TOP GUIDED CONTROL VALVE FEATURE

      Pneumatic top guided 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;Pneumatic top guided 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 top guided control valve is equipped with multi-spring diaphragm actuator, with small size &large output force feature;Pneumatic top guided control valve is applicable for high temp, low temp & small pressure differential of front-after valve with requirement of high closure performance and reliability.
    • PNEUMATIC TOP GUIDED CONTROL VALVE SPECIFICATION

      Pneumatic control valve
      Body type:
      straight through casting globe type
      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 top guided 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 TOP GUIDED CONTROL VALVE STRUCTURE

    • PNEUMATIC TOP GUIDED 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
    • PNEUMATIC TOP GUIDED CONTROL VALVE PERFORMANCE

      Pneumatic top guided 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
      Pneumatic top guided 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 TOP GUIDED CONTROL VALVE SPECIAL REQUIREMENT

      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 TOP GUIDED CONTROL VALVE ACTUATOR PARAMETER

      Control Valve Type\ Method Pneumatic diaphragm actuator
      ZH23~ZH56
      Multi-spring type
      Pneumatic top guided control valve 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.
    • PNEUMATIC TOP GUIDED CONTROL VALVE TECHNICAL PARAMETER

      Seat diameter(mm) 10 12 15 20 25 32 40 50 65 80 100 125 150 200
      Rated Cv Percentage 1.6 2.5 4.0 6.3 10 16 25 40 63 100 160 250 400 630
      Linear 1.8 2.8 4.4 6.9 11 17.6 27.5 44 69 110 176 275 440 690
      Nom. size Travel Option flow characteristic Cv. (★standard  ●recommanded  ○customized)
      DN20 16mm ● ● ● ★                    
      DN25 ● ● ● ● ★                  
      DN32 25 mm ○ ○ ○ ○ ○ ★                
      DN40   ○ ○ ○ ○ ● ★              
      DN50     ○ ○ ○ ● ● ★            
      DN65 40mm           ○ ○ ○ ★          
      DN80           ○ ○ ○ ● ★        
      DN100           ○ ○ ○ ● ● ★      
      DN125 60mm                 ○ ○ ○ ★    
      DN150                   ○ ○ ● ★  
      DN200                   ○ ○ ● ● ★
      Pneumatic actuator
      Diaphragm area, Ae(cm2)
      ZHA/B-22 ZHA/B-23 ZHA/B-34 ZHA/B-45
      350 350 560 900
      Action Spring range Metal sealing allowable pressure difference (MPa)
      Air open 20-100KPa 4.46 3.09 1.98 1.16 0.7 0.44 0.28 0.18 0.17 0.11 0.07 0.07 0.05 0.03
      40-200 KPa 6.4 6.4 5.94 3.34 2.14 1.31 0.84 0.53 0.51 0.33 0.21 0.22 0.15 0.09
      80-240 KPa 6.4 6.4 6.4 6.4 4.99 3.05 1.95 1.25 1.18 0.78 0.5 0.51 0.36 0.21
      Air close 20-100KPa 6.4 6.19 3.96 2.23 2.14 0.87 0.56 0.35 0.34 0.22 0.14 0.15 0.1 0.06
      40-200 KPa 6.4 6.4 6.4 6.4 6.4 5.86 3.64 2.3 2.21 1.43 0.91 0.95 0.66 0.37
      80-240 KPa 6.4 6.4 6.4 6.4 6.4 6.4 5.04 3.18 3.06 1.98 1.26 1.32 0.92 0.52


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