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NEWS
Selection of valve surface coating
Selection of valve surface coating
2022-11-14
Corrosion is one of the important elements that cause valve damage. In valve protection, valve anti-corrosion is an important issue to be considered. For metal valves, surface coating treatment is the best cost-effective protection method.
Operation and use of flanged stainless steel ball valve
Operation and use of flanged stainless steel ball valve
2022-11-14
Flanged stainless steel ball valve refers to the stainless steel ball valve connected by flange, which is unblocked or blocked by the rotary valve. Stainless steel ball valves are not easy to be eroded by media and are widely used in various industries.
Anti freezing and maintenance of valves in winter
Anti freezing and maintenance of valves in winter
2022-11-14
In winter, the temperature drops rapidly, and the valve often freezes. At this time, if it is not handled, the pipeline will be prone to failure. Accidents may also occur under some high-risk conditions. Therefore, antifreeze treatment of valves is very important.
Operation and use of high pressure ball valve
Operation and use of high pressure ball valve
2022-11-13
1) Before operation, confirm that the pipeline and valve have been flushed. 2) The valve operation drives the valve rod to rotate according to the input signal of the actuator: when it rotates 1/4 circle (90 °) in the positive direction, the valve is closed. The valve opens when it is rotated 1/4 turn (90 °) in the opposite direction.
Materials used for gas valves
Materials used for gas valves
2022-05-26
There are four types of gas commonly used in China: natural gas, liquefied gas, artificial gas and the mixture of liquefied gas and air. Natural gas is the least corrosive, followed by liquefied gas, and artificial gas is the most corrosive. The harmful substances in artificial gas are mainly sulfur dioxide, naphthalene, coal tar, etc.
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