What should I do if the knife type gate valve leaks?

? ? Knife type gate valveIt has important applications in industrial fluid control. In order to ensure the safe operation of the entire system, its sealing performance is very important. If there is a leakage fault, it needs to be dealt with in a timely manner, otherwise it will affect production efficiency and bring safety hazards. This article will provide a detailed introduction to the causes and solutions of leakage in knife gate valves.

? ? Reasons and Solutions for Leakage of Knife Gate Valve：

? ? 1. Sealing failure

This is a common cause of leakage, and the main factors that lead to this situation include aging of sealing materials, low machining accuracy of sealing surfaces, deformation of valve bodies, high medium temperature or pressure, and external forces.

In case of sealing failure, simply check the various factors mentioned above and replace or repair the sealing ring according to the actual situation.

? ? 2. Valve stem leakage

The sealing failure between the valve stem and the packing box can also lead to leakage.

If the valve stem leaks, the clearance of the valve stem can be adjusted or the packing box can be replaced.

? ? 3. Valve body defect

Defects in valve body casting or welding, such as cracks, pores, etc., can also cause leaks.

If the valve body has defects, it needs to be repaired or replaced.

? ? 4. Improper installation

Improper installation, such as loose flange connections, can also lead to leaks.

Users should strictly follow the instructions when installing knife type gate valves to ensure a tight connection.

To prevent the occurrence of leakage faults in knife gate valves, we can take the following measures:

1. Regularly inspect the status of each component of the valve, promptly identify and address potential leakage hazards.

2. Select the appropriate valve type and material based on factors such as the properties of the medium, temperature, and pressure.

3. When operating the valve, it is necessary to strictly follow the operating procedures to avoid damaging the valve.