Assembling Requirements For Valves

- Apr 12, 2019-

Clean parts must be sealed for installation.

The requirements for the installation process are as follows:

1. Installation workshop must ensure cleanliness, or build temporary clean areas, such as using newly purchased coloured strip cloth or plastic film, to prevent dust from entering during installation.

2. The assembly workers must wear clean cotton overalls, cotton caps on their heads, no hair leakage, clean shoes on their feet, plastic gloves on their hands and degreasing.

3. Tools for assembly must be degreased and cleaned before assembly to ensure cleanliness.

Acceptance requirements

Acceptance and acceptance follow the HG 20202-2000 "Degreasing Engineering Construction and Acceptance Specification". Before assembly, each component is wiped with clean precision filter paper. The dead corner of the component is selected, and the color of the filter paper remains unchanged to be qualified.