ZSHO/ZDRO series of O shut-off valve is a kind of rotary shut-off valve, and an implemental unit in the pneumatic-electric combined meters which is often used together with the components such as solenoid pilot actuated valves. There are soft seal used under -40-180 and metal seal used under -60-450.
2 With high transmission efficiency, high rated flow co-efficient and good instead of the parts, this series of products are widely applied for the medium cutting off or unlocking in the gas or liquid transmitting pipes to meet the demand of operation in the producing departments in the fields of petroleum, chemical engineering, pharmaceutics, metallurgy, light textile, paper manufacture and sewage disposal.
3 "O"Shut-off Ball Valve uses cylinder plug pneumatic actuator or electric actuator and it uses special craft to harden treatment on the ball surface which made the surface smooth and anti friction the valve seat and the sealing material are made of heat resistant and abrasion resistant carbon fiber, and the product is delicate and reasonable. There are pneumatic plug type O shaped shut-off ball valve and electric O shut-off ball valve. The PN grade is 150 and 300. The DN is 1-10 inches, the leakage rate standards are IV, and the valve spool corner is 90. Various specifications are optional.
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