Valves are essential hardware components used in a wide range of industrial and mechanical systems. To ensure their optimal performance, valves must meet specific technical requirements before and during the assembly process. Proper preparation and careful handling are crucial to avoid defects and maintain quality. What are the key technical requirements for valve assembly?
**Pre-Assembly Requirements for Valves:**
1. Before assembly, certain parts need to be polished to remove any burrs or imperfections on the surface.
2. All components must be thoroughly degreased to eliminate oils and contaminants that could affect performance.
3. After degreasing, acid washing and passivation should be performed using a cleaning agent free from phosphorus to enhance corrosion resistance.
4. Following pickling and passivation, parts must be rinsed with pure water to ensure no chemical residue remains, except for carbon steel components which may skip this step.
5. Each part should be wiped dry using non-woven fabric or precision filter paper, ensuring no fibers are left behind. Alternatively, clean nitrogen can be used for drying.
6. The final inspection involves wiping each component carefully until no discoloration or dirt is visible.
**Technical Requirements During Valve Assembly:**
1. The assembly area must remain clean at all times. If necessary, a temporary clean zone can be created using new color strips or plastic film to prevent dust contamination.
2. Workers involved in the assembly should wear clean cotton overalls, a cotton cap, and clean shoes. Hair must be fully covered, and gloves made of plastic should be worn to avoid contamination.
3. All tools used for assembly must be cleaned and degreased prior to use to maintain the integrity of the components.
By following these strict pre-assembly and assembly guidelines, manufacturers can ensure that valves function efficiently and reliably in their intended applications. Proper attention to detail during every stage of the process is essential to maintaining high-quality standards in valve production.
*Tag: Valve Assembly, Technical Requirements, Passivation, Parts*
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