The application of large diameter gate valve in life
Apr 29, 2019
The sealing surface of the large-diameter gate valve can be sealed only by the medium pressure, that is, the sealing surface of the gate is pressed against the valve seat on the other side by the medium pressure to ensure the sealing of the sealing surface, which is self-sealing. Most of the gate valves are forced to seal, that is, when the valve is closed, the external force is forced to press the gate to the valve seat to ensure the sealing of the sealing surface.
The main working principle of the large-diameter gate valve adjustment mechanism is to change the flow area between the valve disc of the large-diameter valve and the valve disc and the valve seat to achieve the purpose of adjusting the above parameters. These types of large-diameter valves are collectively referred to as control valves, which are classified into self-driven control valves such as pressure reducing valves and pressure regulators that are driven by the medium itself, and are driven by power (such as electric power and compressed air). And hydraulic power) is called his drive control valve, such as electric control valve, pneumatic control valve and hydraulic control valve.
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