Slow closing silencer check valve structure: HH42X-16 Slow closing muffler check valve, also known as 300X slow closing muffler check valve is the plant recently developed a new check valve, the valve has a structure Novel, reasonable design, good sealing effect, resistance, flow, long life and so on. Can control the main valve opening or closing speed, with the scene transferred to the best working condition, can completely eliminate the phenomenon of water hammer to achieve the effect of slow closing silencer. This valve has two water chamber inside the composition of the diaphragm under the water cut-off port for the passage of water (cut-off opening the largest area close to the diameter of the area), diaphragm pressure chamber for the water chamber, when the pump stops working, Due to the self-weight of the valve flap and the pressure on the water chamber, the shut-off port is promptly closed by 90%, and the remaining 10% is transmitted to the upper water chamber through the conduit. As the pressure in the upper water chamber increases, the shut-off port slowly closes 10%, play a slow closing silencer role. When the valve is delivered from the factory, the needle valve and the control valve are all closed. When the valve is used, the needle valve rotates counterclockwise by half a turn and the control valve opens by 1/2 turn. If the water hammer phenomenon is found, the valve can be fine-tuned off and the large needle counterclockwise Valve to eliminate water hammer phenomenon.
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