Structural characteristics of the gate valve 1, the flange bolts in the connection, both ends of the branch flange connection or butt welding connection 2, the opening and closing parts with semi-sealed pair of mandatory seal, excellent performance 3, sealing material is wear-resistant ceramic or wear Alloy, strong abrasion resistance, abrasion resistance, durable erosion, abrasion resistance, small friction, reliable sealing 4, the body outlet flow channel junction type is reasonable, not slag, opening and closing flexible, Valve stem by quenching and nitriding on the surface, have engaged in good corrosion resistance, abrasion resistance and abrasion resistance 6, set in large diameter rolling bearings, easy to open and close the gate valve installation and maintenance Notes 1, hand wheel, handle And the transmission mechanism are not allowed to lift, and no collision. 2, double gate valve should be mounted vertically (ie stem in a vertical position, the hand wheel at the top). 3, with bypass valve gate valve should be opened before opening the bypass valve (to balance the pressure difference between import and export and reduce the opening force). 4, with the gear valve, according to the instructions of the product installation instructions. 5, if the valve is often used switch, lubrication at least once a month.
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