Each valve has a DC project are six kinds of running, were grounded, outage, standby, lockout, unlock and load boost. Control system through the inverter, circuit breakers, isolating switches and other equipment in the order control, to achieve conversion valve running operation.
2013年11月4日星期一
Pump outlet check valve must be installed in order to prevent sudden loss of power due to pump unit
Check valve is mainly used for water supply piping system, its role is to prevent fluid backflow automatically to protect the safe operation of the pipe network. In the water supply pipelines, pump outlet check valve must be installed in order to prevent sudden loss of power due to the pump unit, causing the liquid supply line back. When the pump unit
Stainless steel needle valve , the valve will automatically shut down, this time in the water supply line may cause severe water hammer phenomenon, when the water pressure in the pipeline suddenly rises to a certain extent,
Instrument valve manifolds systems, resulting in significant losses. Therefore, to ensure the safe operation of the pipeline system, the most important is to minimize the occurrence of destructive water hammer. In the piping system, the occurrence of water hammer is unavoidable, to minimize water hammer occurs when the extent of the harm that it will not cause damage to the piping system. Produce water hammer strength and structure check valve and valve closure duration. Time delay when the valve is closed, the water hammer pressure is reduced.
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