What are the selection conditions of electric butterfly valve and pneumatic butterfly valve?

Electric butterfly valve is a very common pipeline flow regulation device, widely used, involved in…

The structure and working principle of the trap

​Steam trap in the steam heating system plays a role in preventing steam drainage, choose the righ…

How to choose the right valve in pipeline design?

​In the fluid piping system, the valve is the control element, its main role is to isolate the equ…

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 meth…

Valve performance testing

1. Inspection of appearance and logoCheck content: whether the appearance of the valve has defects,…

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 a…

Effective troubleshooting method after trap failure

In the thermal system, the thermal trap plays a very important role, and its performance directly a…

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 th…