Day: October 19, 2021

Under normal circumstances, if it is not tightly closed, first check to see if the valve is closed in place. If it has been closed in place, there is still leakage and cannot be sealed, then check the sealing surface. If the vice-sealing pair can be disassembled, then take it out for grinding and test again. Of course, if it is still not closed tightly, then it must be returned to the factory for repair or replacement of the valve, so as not to affect the normal use of the valve and accidents such as working conditions.

Today, we talk about 2 Types industrial valve sealing type

The seal is also a very critical component in the valve. The sealing performance of the valve refers to the ability of each sealing part of the valve to prevent the leakage of the medium. It is the most important technical performance index of the valve.

There are many factors that affect valve sealing, We can find there are 4 main elements.

mainly as follows:

1. Sealing structure

Under the change of temperature or sealing force, the structure of the vice-sealing part will change. Moreover, this change will affect and change the force between the vice-sealing part, thereby reducing the performance of the valve sealing.

It means that when the opened valve is suddenly closed, due to the inertia of the pressurized water flow, a water shock wave is generated and has a destructive effect. This is the “water hammer effect” in hydraulics, that is, positive water hammer.