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Ball valve repair ......

( Updated: Sept. 18,2011 )

1, and only removed after the pressure ball valve, ball valve can break down the operation to be demolished.

2, in the decomposition of the ball valve and re-assembly process, the need for the protection of sealing components, especially non-metallic components, such as O-rings and other components using a dedicated tool for the best.

3, re-assembly when the ball valve body bolts must be symmetric, and gradually, evenly tightened.

4, cleaning agents should be consistent with the rubber ball valve, plastic pieces, metal pieces and media (eg, gas), all compatible. Work for the gas medium, the available gas (GB484-89) to clean metal parts. Non-metallic parts with pure water or alcohol to clean.

5, from the decomposition of individual parts can be cleaned the way immersion. Not yet left down decomposition of the metal pieces of non-metallic parts may be clean of the fine cleaning of the cleaning agent are impregnatedç»¸å¸ƒ(in order to avoid loss of adhesion in fiber parts) scrub. To be removed to clean all the adhesion at the wall ,on the grease, dirt, plastic product, dust and so on.

6, non-metallic parts should be cleaned immediately removed from the cleaning agent may not be a long soak.

7, needed to be cleaned by washing wall after volatile cleaning agent (cleaning agent can be used not dip the brushç»¸å¸ƒ) for assembly, but not a long time on hold, otherwise they will rust, the dust pollution.

8, the new parts in the assembly to be cleaned before.

9, the use of grease lubrication. Ball grease with metallic materials, rubber parts, plastic parts and media are compatible. Working medium for the gas, the grease can be used such as the special 221. Seals installed in the slot of a thin layer coating the surface grease, in the rubber seal on a thin coating ,Grease layer, stem friction between the sealing surface and a thin layer coating the surface of grease.

10, the assembly should not allow metal debris, fibers, oils and fats (except for the use of) dust and other impurities, foreign bodies, such as pollution, adhesion, or remain in the parts into the cavity or the surface.