Cast steel Gate Valve opening and closing is damper, can only be fully open and close, not to adjust and throttling.
Sealing face has two gate, the Gate Valve is the most commonly used mode is a wedge two sealing surface formation.
Wedge Gate Valve of the damper can be made into a whole, is called a rigid disc;
Electric butterfly valve can also be made to produce trace of deformation of ram, in order to improve the manufacturability, make up for the sealing surface Angle in the process of our processing deviation, this damper is called elastic disc.
1, asbestos, graphite and flexible graphite, reliable seal, flexible operation of the light.
2, widely used in petroleum, chemical industry, hydropower and thermal power plant all kinds of the pipeline system.
3, compact structure, reasonable design, the valve rigidity, smooth channel, small flow resistance coefficient.
4, sealing surface for stainless steel or hard alloy, long service life.
5, can be used in a variety of piping flange standard flange sealing surface form, and can meet the needs of all kinds of engineering and the user requirements.
Cast steel Gate Valves for more details: http://www.didlink-valve.com/