control valve,Electric contrPneumaticol valve,Pneumatic ball valve-Control valve manufacturer

contact us

SHANGHAI HUIXUAN VALVE

Mobile:+86-17717520739
Wechat:17717520739
Email:info@shxvalve.com

Address: NO.720, Suide Road, Jiading District,Shanghai, China.
 

Pneumatic stainless steel control valve

Model:

  • Port size:DN25~300, NPS 1〞~ 12〞
  • Pressure:PN16 ~ 100,150LB ~ 600LB
  • Medium:Water,liquid,air,gas
  • Temperature :-196~450℃
  • Body material:CF8 CF3 CF8M CF3M
  • Description:
  • Pneumatic stainless steel control valve Feature

    Pneumatic stainless steel control valve is single seat design, the control valve adopts top guide structure, small size, light weight,compact design, competitive price; Pneumatic stainless steel control valve body material can choose CF8 CF3 CF8M CF3M or other stainless steel for steam, corrosive medium or other working situation.Pneumatic stainless steel control valve is equipped with multi-spring diaphragm actuator, with small size &large output force feature;Pneumatic stainless steel 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 stainless steel 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 stainless steel   
    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
    Actuator: Pneumatic: multi-spring diaphragm actuator, piston type actuator.
  • Pneumatic stainless steel control valve Material 

    Component name Control Valve Material
    Body/Bonnet CF8/CF3/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 304/316/316L
  • Pneumatic stainless steel control valve Performance

    Pneumatic 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 stainless steel 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 stainless steel 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.
  • Pneumatic stainless steel 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

INQUIRY US

微信扫一扫

添加我为好友了解更多