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Degreasing valve cleaning steps and assembly requirements
1, the valve degreasing cleaning steps: degreasing valve components must be processed before the assembly process: 1) According to the processing requirements, part of the valve components need to be polished, the surface can not have processing burr; 2) All valve components 3) degreasing passivation after completion of the pickling (cleaning agent does not contain phosphorus); 4) pickling passivation purified water rinse, there is no drug residues (carbon steel parts omitted this step); ) Each valve parts with a non-woven dry, can not be wired wool retention parts surface, or with a clean dry nitrogen; 6) with non-woven or precision filter paper with pure alcohol on each valve components Wipe until there is no dirty color. 2, degreasing valve assembly requirements degreasing valve cleaning parts must be sealed for installation. The requirements of the installation process are as follows: 1) The degreasing valve installation workshop must be clean, or temporary clean area (for example, new color stained cloth or plastic film) should be set up to prevent dust from entering the valve during installation. 2) The fitter must wear clean cotton overalls, a cotton cap, no hair loss, clean shoes and plastic gloves (skim). 3) Assembly tools must be defatted before degreasing valve assembly cleaning, to ensure clean.