Welcome to the official website of Shanghai Gaochuan Valve Manufacturing Co., Ltd.! 

CN | EN | Sitemap | RSS | XML

National Advisory Hotline:


your current location : Home >> Products >> Pneumatic valves
Welded three-piece pneumatic ball valve

Welded three-piece pneumatic ball valve

  • Classification:Pneumatic valves
  • Number of visits:second
  • Date of issue:2021-04-27 14:55:15
  • Product overview
  • Performance characteristics
  • Technical Parameters

1. Overview of the three-piece welded pneumatic ball valve : The
pneumatic three-piece internal threaded ball valve is composed of a double (single) acting pneumatic piston actuator and an internal threaded ball valve. The valve body can be divided into integral type, two-stage type and three-stage type. The valve seat adopts an elastic sealing structure, which is reliable in sealing and easy to open and close. The valve stem adopts a bottom-mounted structure with an inverted seal. When the valve cavity is abnormally increased in pressure, the valve stem will not be impacted. The pneumatic piston actuator adopts low-friction materials to make the bearing sleeve, and the inner and outer surfaces of the cylinder are treated with hard anodized anti-corrosion treatment, which greatly improves the service life of the cylinder. This product has stable performance and is widely used in petrochemical, metallurgical, electric power and other industrial sectors.

product nameThree-piece welded pneumatic ball valve
Product numberQ661F
Product caliber15-100MM
Product pressure1.0Mpa-4.0 Mpa
Body materialCast steel, stainless steel 304, 316, 316L
Valve plate materialCast steel, stainless steel 304, 316, 316L
Drive methodManual, pneumatic, electric

Second, the main parameters of the pneumatic actuator: 

Pneumatic actuatorsAT series, ATE series single and double acting pneumatic actuators
Supply pressure0.4-0.8MPA
Air connectionG1/4", G1/8", G3/8", G1/2"
Action formSingle-acting pneumatic actuator, double-acting pneumatic actuator
Can be equipped with accessoriesSolenoid valve, limit switch, two-piece, handwheel mechanism, etc.

Three, the main parts and materials of the pneumatic actuator: 

nameAT pneumatic actuator
CylinderAluminum alloy type material hard anodized
End capDie-cast aluminum alloy epoxy resin spraying
pistonDie-cast aluminum
axisSteel nickel-phosphorus alloy
bolt304 stainless steel

4. Material of main parts of the body of the three-piece welded pneumatic ball valve: 

Part NameMain material
Valve bodyCast steel, stainless steel 304, 316, 316L
Ball coreOCr18Ni9, OCr17Ni12Mo2
Valve seatPTFE
StemOCr18Ni9, OCr17Ni12Mo2
fillerPTFE, flexible graphite






Scan and follow us

 Address: No. 2465, Hengcang Road, Malu Town, Jiading District, Shanghai

Phone: 021-56772777 56521514 56521504

 Fax:021-56770777          QQ:49453698