How to do it so that the ball valve has a longer life

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To the ball valves has a long service life and maintenance-free period, in addition to normal operating conditions, power station valve, to maintain the harmonious temperature / pressure ratio, and corrosion data will rely on to do the following to pay attention to factors.
To the ball valve has a long service life and maintenance-free period, in addition to normal operating conditions, power station valve, to maintain the harmonious temperature / pressure ratio, and corrosion data will rely on to do the following to pay attention to factors.
In the valve closed state, the internal body is still there is a pressure fluid.
Maintenance of ball valves, lifting the line pressure and the valve in the open position.
Ball valve maintenance, disconnect the power or gas source.
Before servicing the actuator bracket from.
Must first identify the valve on the downstream pipeline has indeed removable pressure in order to disassemble the operation.
Decomposition and re-assembly must be careful to prevent damage parts of the sealing surface, especially non-metallic parts should use a special tool, remove the O-ring
Bolts on the flange when the ball valve assembly must be symmetrical, gradually and evenly tightened.
Cleaning agent and ball val ve rubber parts, plastic parts, metal parts and the working medium (eg, gas) are thus compatible. Working medium for the gas can be used gasoline to clean metal parts. The non-metallic parts with pure water or alcohol.
Break down the individual parts can be used way immersion cleaning. Still left not break down the non-metallic parts of the metal parts can be used to clean fine clean silk cloth impregnated with a cleaning agent to scrub (in order to avoid fiber shedding adhesion in part). Cleaning required to remove all the adhesive on the wall, grease, dirt, plot glue, dust and so on.
Non-metallic parts after cleaning should be immediately removed from the cleaning agent, not a long soak
Dip the silk of the cleaning agent after cleaning needed to be washed wall volatile cleaning agent (available not rub) for assembly, but may not set aside for a long time, otherwise it will rust, dust pollution
New parts in the assembly also need clean water
The use of grease lubrication. Greases are compatible with the ball valve metal materials, rubber parts, plastic parts and the working medium. Working medium for the gas can be used, for example, special 221 grease. Coated with a thin layer of grease seals installed in the groove on the surface, coated with a thin layer of grease on the rubber seals, valve stem sealing surface and the friction surface is coated with a thin layer of grease.
The assembly should be not allowed to have metal debris, fibers, grease, dust and other impurities, foreign bodies (except for the requirement to use) contamination, adhesion or remain in part on the surface or into the cavity.