Degreasing Treatment Of Sanitary Diaphragm Valves Is Commonly Known As Oil-free Treatment And Details That Need To Be Paid Attention To During Installation
The degreasing treatment of Sanitary Diaphragm Valve is commonly known as oil-free treatment and the details that need to be paid attention to during installation.
The sanitary diaphragm valve must be strictly completed in accordance with the required steps before and after assembly. This article mainly introduces the processing process that the parts of the diaphragm valve must go through before assembly, as follows:
1) According to the processing requirements, some parts need to be polished, and there should be no processing burrs on the surface;
2) All parts are degreased;
3) After the sanitary diaphragm valve is degreased, it is pickled and passivated (the cleaning agent does not contain phosphorus);
4) After pickling and passivation, rinse with pure water, and there should be no residual agent (this step is omitted for carbon steel parts);
5) Wipe each part with non-woven cloth, and there should be no lint on the surface of the part, or blow dry with clean nitrogen;
6) Wipe each part with non-woven cloth or precision filter paper dipped in analytical pure alcohol until there is no dirty color.
Other requirements for the installation of sanitary diaphragm valves:
1) The assembled sanitary diaphragm valve should be purged with nitrogen for at least 1 minute;
2) The airtight test must be done with pure nitrogen;
3) After the airtight test is passed, it is packaged and sealed with a clean polyethylene cap. The polyethylene cap should be soaked in an organic solvent and wiped clean before use;
4) Then seal it with a vacuum bag;
5) Finally pack it;
6) Take measures to ensure that the package is not damaged during transportation.
The degreasing treatment of sanitary diaphragm valves is a process of cleaning ball valves, which requires carefulness. Often, the occasions where ball valves are degreased are places that are particularly sensitive to oily substances. I hope this article will be helpful to readers.
