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Application and structural characteristics of empty check valve

Application and structural characteristics of empty check valve

The empty discharge check valve is installed on the outlet pipe of the high-pressure feed pump of the thermal power unit to prevent backflow of feed water and protect the feed water pump. The valve works with the minimum flow automatic recirculation bypass valve of the water pump. When the feed water pump is under low load or the outlet gate is closed, the automatic recirculation bypass valve (automatic recirculation valve) should be in the open position to ensure the safe operation of the water pump. . When the empty check valve is opened, the recirculation bypass valve is automatically closed. It is not suitable for medium containing solid particles and high viscosity.

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What are the types of valve seats, and what is the typical process of horseshoe-shaped valve seats?

What are the types of valve seats, and what is the typical process of horseshoe-shaped valve seats?

The valve seat is composed of inner and outer cylindrical surfaces, end planes and threaded surfaces, and belongs to sleeve parts. There are four types of valve seats. According to the purpose of the valve, its valve seat is divided into metal valve seat and non-metallic seat. The non-metallic valve seat has a simple structure and is an annular valve seat.

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No. 115, Shuangxi Road, Qingyang Economic and Technological Development Zone, Chizhou City, Anhui Province, China

We are committed to:

High, medium and low pressure ball valves, gate valves, globe valves, butterfly valves, steam traps, regulating valves, pressure reducing valves, hydraulic control valves, throttle valves, power station valves, emergency shut-off valves, and other products.

We are committed to:

High, medium and low pressure ball valves, gate valves, globe valves, butterfly valves, steam traps, regulating valves, pressure reducing valves, hydraulic control valves, throttle valves, power station valves, emergency shut-off valves, and other products.

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