1, before installation, check the shape of air control needle valve is damaged, if there is damage, may cause high pressure air control valve can not be used normally.
2, before installation, check valve interface, valve internal and valve surface is clean, if not clean, you can use gas purging.
3, according to the air control needle valve structure, correctly install the needle valve in the pipeline or system. For the import and export of air control needle valve, according to the identifier connection. For the import and export of air controlled needle valve, according to the "low in and out" principle, that is, the low level of the entrance is the entrance, the high level of the outlet is the exit. Attention should be paid to the piping and system, and a filter should be installed in the system to protect the system components.
4, after installation, check the pipeline installation is correct, especially to control the air control needle valve opening / closing the air pressure is in the supplier specified pressure range.
5, after installation, start / close the needle valve 2-3 times, to check whether the performance is good.
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