Valve leakage is a common but troublesome event in industrial facilities. Although some valves are expected to have a certain degree of leakage, especially when they begin to reach the pressure set on the nameplate, other valve leakage is problematic and may even affect your The facility poses a danger. If you suspect a valve is leaking, here are a few reasons why your safety valve or relief valve may be leaking, how to test the valve, and how to troubleshoot a valve that has been confirmed to be leaking. The four common reasons that a pressure relief valve may leak include:
1. Reasons for the leakage of the pressure relief valve
1. The pressure relief valve is not completely closed
If the valve is not completely closed, the pressure relief valve and safety relief valve will leak. This is a common problem in industrial environments where the environment is usually dusty or dirty. If there is any debris in the valve, it will prevent the valve from closing completely, causing the valve to leak.
2. The pressure relief valve is damaged
The pressure relief valve will age and begin to age, especially in factories and facilities that experience extreme temperatures and a lot of wear. Over time, the valve may be damaged, thereby affecting its ability to close properly. If there is any damage or excessive wear on the valve seat or seal, leakage may occur.
3. The size of the pressure relief valve is wrong
Another common cause of safety relief valve leakage is that the valve size is not suitable for the project. Whether it is a loose fit or a complete wrong fit, improperly installed valves will not work properly and will often leak.
2. Leakage elimination method of pressure relief valve
If you have tested and confirmed that your safety relief valve is leaking, there are several ways to troubleshoot and try to resolve the leak.
The first step is to determine the cause of the leak.
Is the size of the pressure reducing valve suitable for the project?
Is the valve damaged?
Is there any dust or debris blocking the valve?
After confirming the source of the leak, you can assess whether the valve can be repaired or whether it should be completely replaced. For example, if the valve size is wrong or the valve is damaged, it is best to replace it. If the valve can be cleaned and adjusted to work properly, then repair may be an option.