Sichuan Saier Valve MFG. Co., Ltd.

China Manufacturer with main products: Floating ball valve Turnnion mounted ball valve Forged steel ball valve Metal sealing ball valve Three-Four-way ball valve way ball valve...

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ball valve


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Place of Origin: Sichuan Zigong in China

Specifications

Unique leakproof structure of valve seat Double-line sealing valve seat designed by combination of many years?ball valve manufacturing experience and advanced technology from home and abroad ensures reliable leakproof structure of valve. Professional processing of valve seat enables abrasion coefficient of valve seat to be low and operation torque of valve to be small. Handle indicating on/off state of valve Flat square structure is adopted for the head of valve stem which enables the correct connection with the handle and ensures the handle to be in the same direction with flow hole of the ball. When the handle is horizontal with pipeline of the valve, the valve is in the state of opening, when the handle is vertical with pipeline of valve, valve is in the state of closing. Lock device To prevent false operations of valve switch and improper actions by unpredictable vibration of the line, lock hole is set on the full open and full close position of the valve, and the valve can be locked with a lock. Especially this locking device is uniquely advantageous when the valve is installed outdoors or on the production line of flammable petroleum or chemicals. Run resistant structure of valve stem When the pressure in the inner cavity of the valve increases, pressure in the middle cavity of the valve may push the valve stem out. To prevent this condition, shaft collar is set at the lower part of the valve stem,which is set into the valve stem from inside of the valve to prevent the valve stem from running off. This is easier and safer for changing filling materials. Meanwhile, in case of fire, pressure of media enables flange of valve stem to contact with sealing surface of the valve, prevent media from leaking out of damaged loading part, and attain the purpose of instantaneous sealing. Electrostatic resistant design When valve is operated, electrostatic power will be produced and accumulate on the ball due to the abrasion between ball and valve seat. To prevent electrostatic spark, electrostatic resistant device is set on the valve, which discharges the electrostatic power produced in the course of opening and closing. The valve of this design can effectively prevent accidents by gasoline, natural gas or propane of low i

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