China Butterfly valve manufacturer,factory and supplier-Butterfly valve

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

Pneumatic air operated butterfly valve

  • Port size:DN40-DN2000;1 1/2''-80''
  • Pressure:PN10 ~ 15,150LB
  • Structure:Rubber lined or metal seated structure
  • Medium:Water,air,etc.
  • Temperature :-20~180ºC(soft seated)-46~450ºC(metal seated)
  • Body material:Cast iron, ductile iron, carbon steel,stainless steel
  • Connection:Flanged,wafer,lug,etc.
  • Feature:Different medium, different structure

Pneumatic air operated butterfly valve is combined with pneumatic actuators and central line or eccentric butterfly valves. The pneumatic butterfly valve stem drive the valve corn rolling 90 in the body which can realize the full open or full close action. Pneumatic air operated butterfly valve can according to the sealing performance into metal seal and soft seal with compact structure,small volume,reliable operation,good sealing,easy maintenance installation convenient and the adoptability is strong advantages. Pneumatic air operated butterfly valve can be widely used in petroleum,chemical industry,light industry,papermaking industrial,pharmaceutical,car automatic control system on a remote concentrated or local control.

Pneumatic air operated butterfly valve specification


Cast iron, ductile iron, carbon steel,stainless steel


Cast iron, ductile iron, carbon steel,stainless steel





Body style

Double flanged, wafer, lugged end

Nominal diameter

1 1/2″ – 80″ (DN40mm – DN2000mm)

Top flange


Operating pressure:

Soft seated structure: 16bar for DN50-DN300, 10bar for DN350-DN2000

Metal seated structure:10bar to 64 bar

Temperature range:

-20 °C to + 180 °C,-40 °C to + 450 °C  (depending on pressure, medium and material)

Flange accommodation

EN 1092 PN 6/PN10/PN16

ASME Class 150/300

AS 4087 PN10/ PN16

JIS 5K/10K

Pneumatic air operated butterfly valve actuator performance

Model: AT Series

Actuator Type: Spring return or double acting rack & pinion pneumatic actuator

Rotation: 90 Degrees (quarter-turn)

Torque Range: For single-acting type: 5.7Nm to 3336Nm  and for double-acting type: 8.0Nm to 4678Nm

Air Supply Pressure: 2.5 bar to 8 bar

Actuator Body: Powder polyester coated Aluminum Alloy

Environment Temperature: -22℉ to 140℉

Mounting Standard: ISO5211 & NAMUR

Pneumatic air operated butterfly valve accesories:
1 Positioner (for regulating function)
2 Solenoid valve
3 Limited switch
4 Handwheel
5 Air filter reducer

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