Wafer Centerline Cast Iron Viton Seat Butterfly Valve

Wafer Centerline Cast Iron Viton Seat Butterfly Valve

The centerline butterfly valve by the seal form classification:(1) forced sealing butterfly valve.1) elastic sealing butterfly valve. Seal specific pressure is produced by the elasticity of the seat, seat, or disc as the disc squeezes against the seat while the valve is closed.

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The centerline butterfly valve by the seal form classification
(1) forced sealing butterfly valve
1) elastic sealing butterfly valve. Seal specific pressure is produced by the elasticity of the seat, seat, or disc as the disc squeezes against the seat while the valve is closed.
2) add torque seal butterfly valve. The seal specific pressure is produced by the torque applied to the valve shaft.
(2) pressure sealing butterfly valve. The sealing specific pressure is generated by the spring sealing element on the valve seat or valve plate.
(3) automatic sealing butterfly valve. The seal specific pressure is generated automatically by the medium pressure.

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