300X Slow Closing Check Valve
Inyroduction:
300X slow closing check valve is an intelligent valve installed at the pump outlet of water supply system of high-rise buildings and other water supply systems to prevent medium backflow, water hammer and water hammer. The valve has three functions: electric valve, check valve and water hammer eliminator, which can effectively improve the safety and reliability of the water supply system.
Working principle of slow closing check valve:
When the valve supplies water from the inlet side, the water enters the main valve control room through the micro filter, needle valve and one-way valve, and then discharges to the downstream through the ball valve. Because the opening of the needle valve is less than that of the ball valve, that is, the drainage speed of the main valve control room is greater than the water inlet speed, the pressure of the control room decreases. The inlet pressure acting on the lower end of the main valve disc opens the main valve to supply water to the downstream. When the water supply stops, if the downstream water starts to flow back, part of the return water enters the main control room through the ball valve. Because of the one-way valve, the return water cannot flow out of the main control room, causing the main control room to gradually increase its pressure, Slowly close the main valve.
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