How to install ball valves correctly?

How to install ball valves correctly?
Proper installation of ball valves is crucial for ensuring the normal operation of the system. The following are the detailed steps on how to correctly install a ball valve:
1. Preparation work:
Before installing the ball valve, some preparatory work needs to be completed. Firstly, check if the ball valve meets the system requirements and regulatory requirements. Secondly, confirm the required interface size and type. Finally, ensure that the ball valve material and sealing material are compatible with the medium.
2. Selection of installation position for ball valve:
Choosing the appropriate installation position for ball valves is crucial. Ensure that the ball valve is installed in a position that is easy to operate and maintain. In addition, the installation of ball valves should be sturdy enough to withstand pressure and vibration in the system.
3. Clean ball valves and pipelines:
During the installation process, it is necessary to always keep the ball valve and pipeline clean. Clean the surface of the ball valve and pipeline to ensure proper installation of seals and avoid leakage caused by dirt or foreign objects.
4. Install pipe fittings and seals:
Install the pipe fittings onto the interface of the ball valve and ensure that the tightening bolts reach the correct torque. Use appropriate seals, such as PTFE sealing rings or packing, to ensure the sealing of the ball valve circuit.
5. Check the direction of ball valve operation:
Before installing the ball valve, it is necessary to confirm the operating direction of the ball valve to ensure that it can open and close smoothly. Ensure that the operating lever or manual operating device of the ball valve is in the appropriate position and meets the installation requirements.
6. Ball valve installation and fixation:
If necessary, use brackets or supports to secure the ball valve in the selected position. Ensure that the ball valve is securely installed to prevent vibration and leakage.
7. Connecting pipelines:
Connect the interface between the connecting pipeline and the ball valve, ensuring that the fastening bolts reach the appropriate torque. When connecting, attention should be paid to avoiding twisting or stretching the ball valve interface.
8. Voltage withstand test:
After installation, perform a pressure test to ensure the sealing and safety of the ball valve. Use appropriate testing equipment and pressure to conduct testing in accordance with regulatory requirements.
9. Ball valve operation inspection:
After completing the pressure test, operate the ball valve several times to ensure its normal operation. Check if the ball valve opens and closes smoothly, and there are no abnormal sounds or vibrations.
10. System pressure debugging:
After completing the installation of the ball valve, perform system pressure debugging to ensure the normal operation of the entire system. Check whether the ball valve can correctly control the medium flow rate and conduct operational tests on the ball valve within the rated pressure range.
Summary:
The above are detailed steps on how to correctly install ball valves. Before installing the ball valve, ensure that the preparation work is completed, select the appropriate installation position, and strictly follow the specifications for installation and testing. Only by correctly installing the ball valve can the normal operation of the system be ensured, and leakage and other potential problems be avoided.