Repair note of Hard seal ball valve

     Summary

     Have a long life and free repair period, will depend on the following factors: the normal working conditions, to maintain harmonioustemperature / pressure ratio, and the reasonable corrosion data

Be careful

    The valve in the closed state, the valve body remains fluid under pressure

    ● Repair, remove line pressure and the valve is in the open position

    ● Repair, disconnect the power or gas source

    ● Repair, the actuator and the support from the

    ● Must identify the valve on the downstream piping, pressure has indeed dropped, attempting to disassemble the operation

     The decomposition and re assembly must be careful to preventdamage to parts of the sealing surface, especially non-metallicparts, remove the O - ring, use special tool

     ● Bolts on the flange must be tightened symmetrically, evenly,gradually

     The cleaning agent should be with the ball in the rubber parts,plastic parts, metal parts and the working medium (such as a gas)are compatible. Working medium for the gas, the gas can be used(GB484-89) to clean metal parts. Pure water or alcohol cleaning with non metal parts

     ● Decomposition down the individual parts can be cleaned using immersion method. Metal non metal still did not break down the leftcan be used to clean fine clean silk impregnated with cleaning agents (to prevent adhesion of fiber loss on the part) scrub. To remove all the adhesive on the wall of the grease, dirt, rubber product, dust cleaning

     ● Non-metallic parts should be cleaned immediately removed from the cleaning agent, not a long time soaking

    ● Need to be cleaned by washing the wall after volatile cleaning agent (cleaning agent can not dip silk rub) for assembly, but not a long time on hold, otherwise it will rust, the dust pollution

    ● Before the new parts in the assembly also need clean water

    ● Use grease lubrication. Greases are compatible with the ball valvemetal materials, rubber parts, plastic parts and the working medium.Working medium for the gas, can be used as special grease 221.Seals installed in the groove on the surface coated with a thin layer of grease, in the rubber seal is coated with a thin layer of grease,coated with a thin layer of grease on the valve stem sealing surface and the friction surface

     ● The assembly should have metal fragments, fiber, fat is not allowed (except the requirement to use) dust and other impurities,foreign matter contamination, adhesion, or stay on the surface or in part into the cavity.

Agricultural Chain

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