When installing a ball valve, it is critical to ensure that every step is correct, which not only affects the performance of the ball valve, but also affects the safe operation of the entire fluid system. The following are detailed steps from pre-installation preparation to post-installation inspection to help you easily complete the installation of the ball valve.
Preparation before installation
Pipeline preparation:
Make sure that the pipes before and after the ball valve are prepared, and the pipes should be coaxial, and the two flange sealing surfaces remain parallel.
The pipe must be able to bear the weight of the ball valve. If the pipe cannot be supported, install an appropriate support structure on the pipe.
Pipe cleaning:
Use compressed air or appropriate cleaning tools to blow clean the pipes before and after the ball valve to remove oil, welding slag and other impurities.
Ball valve inspection:
Check the markings on the ball valve to ensure that the ball valve is intact.
Open and close the ball valve several times to verify that it is working properly.
Remove the protective parts:
Remove the protective parts on the connecting flanges at both ends of the ball valve for installation.
Check and clean the valve hole:
Check the valve hole to make sure there is no dirt. Clean the valve hole with an appropriate cleaning agent, as even tiny particles can damage the valve seat sealing surface.
Start installing the ball valve
Installation position:
Install the ball valve on the pipeline, and either end of the valve can be used as the upstream end.
If the ball valve is driven by a handle, it can be installed at any position on the pipeline. However, if the ball valve has a gearbox or pneumatic actuator, it should be installed upright, that is, installed on a horizontal pipeline with the actuator located above the pipeline.
Install the gasket:
Install the gasket between the valve flange and the pipeline flange according to the pipeline design requirements.
Tighten the bolts:
Tighten the bolts on the flange symmetrically, step by step, and evenly to ensure that the flange connection is tight.
Connect the pneumatic pipeline (if applicable):
If a pneumatic actuator is used, connect the pneumatic pipeline and ensure that it is firmly connected.
Check after installing the ball valve
Operation check:
Operate the actuator to open and close the ball valve several times to ensure that the ball valve operates flexibly and without stagnation, and verify whether it works properly.
Sealing performance check:
According to the pipeline design requirements, check the sealing performance of the flange joint surface between the pipeline and the ball valve to ensure that there is no leakage.
Following the above steps, you can easily complete the installation of the ball valve and ensure its stable, safe and reliable performance. If you encounter any problems or questions during the installation process, please feel free to consult a professional ball valves manufacturer.
Post time: Mar-19-2025