Bellows Gate valve Opening and closing parts are plug-shaped disc, sealing the surface or cone, the disc along the center line of the fluid for linear movement.
1, simple structure, manufacturing and maintenance is more convenient.
2, the work trip is small, the opening and closing time is short.
3, good sealing, the sealing surface between the small friction, long life.
The disadvantages of bellows valves are as follows:
1, large fluid resistance, open and close when the need for greater force.
2. It is not suitable for medium with particles, large viscosity and easy coking.
3. Poor regulation performance.