Precautions When Using 3-way Ball Valve

There are 12 points to note when operating and maintaining high-pressure, 3 Way Ball Valve:

1. When a high-pressure, hard-seal ball valve is closed, pressurized fluid remains inside the valve body.

2. Before maintenance, release the pipeline pressure and open the valve; disconnect the power or air supply; and detach the actuator from the bracket.

3. Ensure that the upstream and downstream pipelines are depressurized before disassembly.

4. During disassembly and reassembly, be careful to avoid damaging the sealing surfaces of components, especially non-metallic components. Use specialized tools to remove O-rings.

5. During assembly, tighten the bolts on the flange symmetrically, gradually, and evenly.

6. The cleaning agent should be compatible with the rubber, plastic, and metal components of the ball valve and the working medium. When the working medium is gas, gasoline can be used to clean metal parts. Clean non-metallic parts with purified water or alcohol.

7. Individual disassembled parts can be cleaned by immersion. Metal parts with undisassembled non-metallic parts can be scrubbed with a clean, fine silk cloth soaked in detergent (to prevent loose fibers from adhering to the parts). Remove all grease, dirt, glue, dust, and other debris adhering to the surface.

8. After cleaning, remove non-metallic parts from the detergent immediately and avoid soaking them for extended periods.

9. After cleaning, wait until the detergent evaporates before assembling. However, do not leave the parts for extended periods, as this will cause rust and dust contamination.

10. New parts must also be cleaned thoroughly before assembly.

11. Lubricate with grease that is compatible with the ball valve's metal, rubber, and plastic components, as well as the working medium. Apply a thin layer of grease to the seal mounting groove, the rubber seal, and the sealing and friction surfaces of the valve stem.

12. During assembly, do not allow metal debris, fibers, grease (except for specified uses), dust, or other impurities or foreign matter to contaminate, adhere to, or remain on component surfaces or enter the internal cavity.