Hydraulic check eccentric hemispherical valve
Usage Overview
The hydraulic check eccentric hemispherical valve is used at the outlet of the water pump, which can achieve a two-stage closure from fast to slow, preventing the water pump from overspeeding and reversing for a long time, and avoiding or reducing excessive water hammer caused by medium backflow in the pipeline, protecting the water pump and pipeline system.
Product Features
Safe operation. Whether it is a normal shutdown or an accident shutdown, the pump can be shut down in two stages, fast first and then slow, to prevent the pump from overspeeding and reversing for a long time or excessive water hammer pressure.
Strong applicability. The valve closing law has a wide range of adjustment and can adapt to different working conditions.
Energy conservation and consumption reduction. Full bore design ensures that the flow path is completely unobstructed when the valve is opened, with almost zero water loss and low operating energy consumption.
部件材質
|
零件名稱 |
材料 |
|
閥體、閥芯 |
球墨鑄鐵QT450-10、鑄鋼WCB |
|
閥軸 |
不銹鋼20Cr13 |
|
球冠 |
不銹鋼20Cr13 |
|
閥座 |
不銹鋼304 |
|
密封圈 |
三元乙丙橡膠EPDM |
|
0型圈 |
丁腈橡膠NBR |
|
螺栓等緊固件 |
不銹鋼A2-70或碳鋼鍍鋅 |












