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How to extend the service life of knife gate valves?

Time: 19-05-09 Follow times:

How to extend the service life of knife gate valves?

How to extend the service life of knife gate valves?

The service life of knife gate valves is a problem that people are more concerned about. So in the production and use process, what methods can we use to extend its service life? Let's take a look together.

In order to ensure the use of knife gate valves, the valve material selection is very important. The material must be selected according to the working conditions, otherwise the valve life will be reduced. During the use, the maintenance of the valve should be strengthened. Such as regular removal of dirt, regular grease injection, regular maintenance, etc. to extend the service life of the valve. Each driving device has its own force characteristics. This force characteristic is related to different specific pressure values on the sealing surface, and also to the stress of the stem and stem nut and other parts. When the electric device is closed to the end , Will cause shock load on the sealing surface, especially the globe valve.

When the valve is installed and used in the open air, the working conditions are very poor, because the wind and rain are susceptible to rust, and sometimes even damage the lubrication. If dust and sand fall into the joints of the parts, the wear of the parts will be accelerated. Knife gate valve as a whole is in the salt spray and will be eroded by the chloride ion in the salt spray. The knife gate valve is very susceptible to rust and loses its proper function. The selection of the knife gate valve should be resistant to chloride ion corrosion. Painted surface. If the valve is installed in the ground, it should be extended with a fully welded valve to prevent the knife gate valve from being corroded by groundwater and mud and sand, which will damage the valve's connecting parts and moving parts.

Therefore, in the long-term use of the knife gate valve, the service life can be improved from these aspects to meet people's needs.

Knife gate valve

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