Pneumatic valve maintenance tips

Maintenance method:

1. The valve should be placed in a ventilated and relatively dry chamber, and both ends of the valve passage should be blocked.

2. If it is stored for a long time, it should be checked regularly and cleaned regularly. After cleaning, it should be coated with anti-rust oil.

3. After installation, we must also regularly check whether the valve is working properly and the degree of aging. The main inspection items include:

(1) The wear of the sealing surface.

(2) The wear of the trapezoidal thread of the stem and stem nut.

(3) Whether the packing is outdated and invalid, if damaged, it should be replaced in time.

(4) After the valve is repaired and assembled, the sealing performance test should be carried out.

The valve should also be injected with grease regularly so that it can be used for a longer time. Correct and orderly maintenance and maintenance of the valve can make the valve function normally and increase the service life. Some things are often ignored by everyone.

1. When injecting grease, the quality of grease is often overlooked. The quality of grease is very important. Some greases not only have no protective effect on the valve, but may also have side effects. Therefore, when choosing grease, try to choose better grease. . How much to inject into the valve, if the injection is less, the sealing surface will wear faster due to lack of lubricant. Injecting more grease will cause the valve to block, affect the normal work, and also cause waste of grease. When injecting grease into the valve, it should be injected according to different valve sizes and instructions. The size and capacity of the valve are calculated, and then the right amount of injection is carried out.

2. When injecting grease into the valve, the problem of pressure is often ignored. If the pressure is too low during injection, it will lead to sealing or failure. If the pressure is too high, the grease injection port will be easily blocked.