Butterfly valve is a disc type opening and closing parts reciprocating around 90° to open, close or adjust the medium flow of a valve. Butterfly valve i

Electrocorrosion
When two different metals are in contact and exposed to corrosive liquids and electrolytes, forming the original battery, the current mak

Valve is an attachment to open and close pipelines, control flow, regulate and control specifications (temperature, pressure, and flow). Valve is a control part

Ⅰ. Causes of a actuator

1. Check whether the gas source pressure of the import and export air filter decompression device reaches the rated value, increase th

The role of the check valve is only allowed the medium to flow in one direction and prevent the medium from flowing in the opposite direction. Usually this kind of valve is operated automatically. Under the action of fluid pressure flowing in a direction, the valve petals are opened; when the fluid is flowing in the opposite direction, the self -overheating valve flap of the fluid pressure and the valve petals acts on the valve seat, thereby cutting the flow.

The check valve generally needs to be installed according to the correct installation method, otherwise it will affect the normal use, so what is the correct in