Valve installation errors, how much do you know

As an important part of the pipeline system, the installation quality of the valve directly affects the operating efficiency and safety of the system. However, in the actual installation process, some common misunderstandings are often ignored, resulting in frequent valve failures. Here are some common valve installation mistakes to help you avoid these problems:

1. Ignore the valve flow sign: many valves have specific flow requirements, such as check valves, stop valves, etc. If the flow direction sign on the valve is ignored during installation and the valve is installed in reverse, the valve will not work normally, or even damage the valve.

2. No consideration of reserved space for thermal expansion: the pipeline system will produce thermal expansion due to temperature changes during operation, if the valve installation is not reserved enough space, thermal expansion and cold contraction will lead to valve deformation or leakage.

3. Improper selection of gaskets: The selection of valve gaskets should be matched according to the medium, pressure and temperature. Using an inappropriate gasket can lead to leaks or premature gasket damage.

4. Uneven tightening bolt strength: When the valve flange is connected, the tightening bolt strength should be uniform to avoid excessive force on a single bolt resulting in flange deformation or leakage.

5. The installation environment does not meet the requirements: some valves have special requirements for the installation environment, such as temperature, humidity, corrosion prevention, etc. If the installation environment does not meet the requirements, the valve performance and service life will be affected.

6. Neglect maintenance operation space: adequate operation and maintenance space should be reserved during valve installation to facilitate future operation and maintenance of the valve.