Slow closing check valve features and how it works

First, the 300X slow closing check valve features: 300X slow closing check valve is a hydraulic control system composed of the main valve, check valve, needle valve, ball valve, microfilter, pressure gauge together. By hydraulic automatic operation, can cause the main valve to get the best Kai, closing speed. Doing so can avoid the occurrence of water hammer hammer, so you can achieve the effect of slow closing silencer. 300X slow closing check valve by hydraulic self-control, without other devices and energy, easy maintenance, open, slow closure will be relatively stable. 300X slow closing check valve products are widely used in high-rise buildings, living areas and other water supply pipe network systems and urban water supply projects. Second, the 300X slow closing check valve works: When the valve from the inlet side of the water when the water is micro-over the filter, needle trouble, one-way valve into the main control room, and then bypass the ball downtown Drain to the downstream. This is due to the opening of the needle valve is less than the opening of the ball valve, which is the main valve control room drainage speed is greater than the inlet speed, it will reduce the pressure in the control room, the role of the lower inlet pressure in the main valve disc Open the main valve to supply water downstream. When the pipeline stops supplying water, if the downstream water begins to flow back, a part of the backflow water enters the main control room through the ball valve. Because of the check valve, the backflow water can not flow out from the main control room. Cause the main control room slowly boost, slowly close the main valve.

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