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

China pneumatic flow control valve


  • Port size:DN15-DN600;1/2''-24''
  • Pressure:PN16 ~ 100,150LB ~ 600LB
  • Medium:Water,steam,oil,gas
  • Temperature :-20~180ºC,-46~450ºC
  • Body material:Carbon Steel, Stainless Steel,forged steel
  • Description:China pneumatic flow control valve manufacturer,factory and supplier for different material and pressure class flow control valve.

China Pneumatic flow control valve Feature

China Pneumatic flow control valve is used to control the flow of gas in a variety of industrial applications including: chemical, petrochemical, bio-tech, food and beverage, pharmaceutical, general industrial, and research. Customers depend on control valve for precise, repeatable performance.China Pneumatic flow control valve adopts pressure-balanced spool structure, allowed large pressure differential, low noise and steady and reliable actuation.


China Pneumatic  flow control valve specification

Pneumatic gas flow control valve
Body type:
straight through casting globe type
Spool type: balanced cage guided sleeve 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 gas flow 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


Chia Pneumatic flow 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

China Pneumatic flow control valve performance

Pneumatic flow control valve Flow characteristic Linear, percentage, quick open
Allowable range 50: 1
Pneumatic  flow control valve  

Allowable leakage
Metal seal:Ⅱgrade(0.5% rated capacity)
Soft seal: V grade
Leakage standard:  GB/T 4213
Pneumatic  flow control valve Performance
Intrinsic error (%) ±1.0
Return difference(%) ≤1.0
Dead zone(%) ≤1.0
Difference from beginning to end point(%) ±2.5
Rated travel difference(%) ≤2.5