As a commonly used gate valve, the gate valve mainly controls the flow and cut-off of the fluid by moving the gate. However, even with good design, gate valves may still have some common problems in long-term operation.
Common faults:
1. Leakage
The most common fault is usually caused by poor valve sealing performance, which may be the result of aging of the sealing gasket, damage to the valve body or valve seat. Leakage not only causes fluid loss and increases operating costs, but may also pollute the environment.
2. Excessive resistance
This may be caused by damage to the valve stem, or more commonly, by crystallization of the medium. When solid particles in the medium are deposited inside the valve, the valve opening is reduced, thereby increasing the resistance of the fluid through the valve. This situation not only reduces the efficiency of the system, but may also cause further damage to the valve.
3. Abnormal noise
It is usually caused by wear of the internal parts of the valve or unstable medium flow. Wear may cause irregular vibration during valve operation, while the instability of medium flow may cause the fluid to hit the valve parts and generate noise.
For these faults, preventive measures usually include regular maintenance and inspection, and the use of high-quality sealing materials to ensure the cleanliness of the medium. Through these measures, the service life of the gate valve can be significantly extended, the frequency of failures can be reduced, and the continuity and stability of the industrial process can be ensured.
Troubleshooting methods
1. Leakage problem
This is a very common problem, but it is also relatively easy to solve. If you find that your gate valve is leaking, the first thing you need to do is to check and replace the seals that may have been damaged.
2. Excessive resistance
Due to the accumulation of crystals in the medium, or damage to the valve stem. At this time, what we need to do is to remove the crystals and repair or replace the damaged valve stem.
3. Abnormal noise
Usually caused by wear of valve components or improper adjustment of the medium flow state. At this time, we need to check and repair the worn parts and adjust the medium flow state to solve the problem of abnormal noise.
