Valve is the control component in the fluid conveying system, with cut-off, regulation, diversion, prevention of countercurrent, voltage stability, diversion or overflow pressure relief and other functions.
First, external damage is caused by material defects. The manufacturing process of valves is very complicated. If the valve produces blowhole or slag inclusion during casting, these defects may expand and cause damage, resulting in fluid leakage.
Flange sealing surface type introduced flange sealing surface according to the working condition, medium, pressure, specifications, temperature and other conditions, so the type of choice is not the same.
1. The stomataThis is a small cavity formed by the gas that cannot be escaped from the metal during solidification. Its inner wall is smooth and contains gas, and it has a high reflectivity to ultrasonic wave.
Direct liquefaction is also called hydroliquefaction. In the hydrogenation process, the valve, pipeline and related equipment are in the high temperature and high pressure hydrogen gas, hydrogen damage is a very big problem. When high 。。。
According to foreign media reports, researchers at the National Laboratory of Albuquerque Sandia, New Mexico, developed a new wear-resistant material consisting of 90% ...
All kinds of filters in front of the equipment, do not allow to open the packaging bag or packaging film; and according to the direction marked on the packaging box to store the filter...
According to data released by China Customs, from January to May 2018, China imported 427.96 million sets of valves , an increase of 2.5% over the same period of last year.
Over the years, with the increase in the amount of oxygen, large oxygen users have used oxygen pipelines. Due to the long length of the pipeline, the distribution is wide, plus...
Vacuum circuit breaker refers to a circuit breaker whose contact is opened and broken in vacuum, and USES vacuum as the insulating medium and arc extinguishing medium...