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Insulation Pneumatic Cut Off Ball Valve

manufacturer: Shanghai Fengqi Industry Development Co., Ltd.
Eml: sales@fengqi.sh.cn

Tel: 0086 (021) 3652 8716
Mob: (0086) 138 1635 6498

product drawing

Insulation pneumatic cut off ball valves
Insulation pneumatic cut off ball valves

Product features

Q641 pneumatic unitary insulation cut off ball valve is composed by the pneumatic piston actuators and interlayer unitary cast body. The seat is designed with rebound effect as the spring to form bi-directional flexible seat, ensuring the reliability of ball sealing. Meanwhile media pressure and the resilience of upstream end flexible structure enhance the seat sealing in downstream end. Flexible structure also can automatically compensate for seat wear and the changes of temperature and pressure, increase service life. This ball valve is widely used in easy to crystallize and the viscous fluids, and can meet the various needs of the insulation media occasions, such as oil medium containing wax, more asphalt, to prevent crystallization of the medium and to ensure the efficient operation of the automatic control systems.


nominal diameter DN 15 20 25 40 50 80 100 150 200
nominal pressure 1.6MPa 2.5MPa ANSI 150 300 JIS 10K
flange connection PF type(JB79.1-94 JB79.2-94 ANSI B16.5)or wafer
body materials carbon steel ZG230-450 and stainless steel ZG1Cr18Ni9, ZGOCr17Ni12Mo2[CF3(M)、CF8(M)]
air supply pressure 0.4~0.7MPa(cut off type) 4~20mA(regulating type)
regulating type: air filter pressure reducer, electirc-gas positioner,handwheel actuators,etc
cut off type: solenoid valve,valve switch, air filter pressure reducer, handwheel actuators,etc
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