Valve components anticorrosion precautions

Method of judging internal leakage of natural gas ball valve

​Fixed shaft ball valve is commonly used on natural gas pipelines, and its general inspection method is: turn the valve to the fully open or fully closed position, and check whether there is leakage through the discharge of the valve body drain nozzle.

Valve performance testing

O-type ball valve and V-type ball valve difference

​Ball valve has many kinds of structure, but basically the same little difference, are the opening and closing parts for the round ball core, mainly by the valve seat, ball, sealing ring

Effective troubleshooting method after trap failure

In the thermal system, the thermal trap plays a very important role, and its performance directly affects the stability and energy efficiency of the steam system.

Harm and protection of abnormal pressure boost in gate valve

​Gate valves usually have single gate, double gate, wedge, parallel and other structural designs

Valve sealing surface grinding is a key step to ensure sealing performance

The sealing performance of the valve directly affects the control effect of the fluid medium and the safe operation of the system, the grinding of the valve sealing surface is one of the important means to ensure its sealing performance

Valve sealing surface material selection factors to consider

​Sealing surface is the most critical working face of the valve, the quality of the sealing surface directly affects the service life of the valve, and the material of the sealing surface is an important factor to ensure the quality of the sealing surface.

What are the precautions for manual operation of electric valves

The electric actuator of valve ‍ is used to control the valve. If the valve cannot be opened and closed due to some factors, such as power failure, failure of the

Working principle of pressure valve

Pressure valve is a device used in hydraulic system to control and regulate liquid flow pressure.