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Considerations for ball valve
Oct 19, 2016

(1) you must first identify the ball valve upstream and downstream pipe has been removed after the pressure and decomposition to demolition action.

(2) non-metal parts cleaning immediately after removal from the cleaning agent may not be soaked for a long time.

(3) the Assembly flange bolts must be symmetric, gradually and evenly tightened.

(4) cleaning agent with the ball valve rubber parts, plastic parts, metal parts and medium (for example, gas) are compatible. When the medium is gas, gasoline (GB484-89) cleaning of metal parts. Non-metallic parts cleaned with pure water or alcohol.

(5) the decomposition of each individual ball valve parts can be cleaned with dipping. Remaining unresolved non-metallic metal work pieces can be used to clean fine silk cloth impregnated with cleaning agent for cleaning (to avoid fiber loss adhesion on the part) of scrub. Cleaning shall remove all attached to the wall of the oils, dirt, glue, dust deposition, etc.

(6) ball valve decomposition and Assembly must be careful to prevent damage to sealing surfaces of the parts, especially the non-metallic parts, remove the o-rings for the times using a special tool.

(7) need to be washed after cleaning the wall after a volatile cleaning agent (not immersion cleaning cloth to wipe) in Assembly, but shall not be set aside for a long time, or it will rust and dust pollution.

(8) also need to be cleaned before the new parts in the Assembly.

(9) the grease lubrication. Greases and ball valves metal, rubber, plastic parts and medium are compatible. When the medium is gas, for example, 221 grease. The seal mounting Groove on its surface coated with a thin layer of grease, rubber coated with a thin layer of grease on the seal, valve stem sealing surface and coated with a thin layer of grease on the friction surfaces.

(10) shall not be allowed when it is assembled with metal fragments, fibers, fat (except for use), foreign body contamination such as dust and other impurities, adhesion or remain on the surface or into cavity.