The flow characteristics of the regulating valve are mainly four kinds of flow characteristics such as linear percentage fast opening and parabola. When installed in the actual control process, the...
With the rapid pace of technology and innovation, valuable information that should be passed on to industry professionals is often glossed over today. While shortcuts or quick fixes can reflect wel...
1. The stomata
This is a small cavity formed by the gas that the metal solidification process does not escape inside the metal. Its inner wall is smooth and contains gas, which has a high reflectiv...
Hard seal butterfly valve
Hard sealing of butterfly valve refers to that both sides of the sealing pair are made of metal materials or other hard materials. The sealing performance of this kind of ...
The center line butterfly valve adopts the center line sealing structure, and the butterfly plate sealing center line of the butterfly valve is consistent with the center line of the valve body and...
Valve selection principle
(1)Safety and reliability. Petrochemical, power station, metallurgy and other industries production requirements for continuous, stable, long-cycle operation. Therefore, t...
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