High temperature and high pressure check valve maintenance ten measures introduced
Addtime：2023-03-25 From： View：1181
How to maintain high temperature and high pressure valves, ten measures:
1. Use grease for lubrication. Grease should be compatible with metal materials, rubber parts, plastic parts and working media of high temperature and high pressure valves. When the working medium is gas, such as special 221 grease can be used. Grease is applied to the surface of the seal mounting tank, grease is applied to the rubber seal, and grease is applied to the sealing surface and friction surface of the valve stem.
2, decomposition and reassembly must be careful to prevent damage to the sealing surface of parts, especially non-metallic parts, take out the O-ring when using special tools.
3. New parts should also be cleaned before assembly.
4. Cleaning agent should be compatible with rubber parts, plastic parts, metal parts and working media (such as gas) in high temperature and high pressure valves. Working medium for gas, available gasoline (GB484-89) cleaning metal parts. Non-metallic parts should be cleaned with pure water or alcohol.
5, the assembly should not allow metal debris, fibers, grease (except specified use) dust and other impurities, foreign bodies and other pollution, adhesion or stay on the surface of the parts or into the cavity.
6. The individual parts decomposed can be cleaned by immersion. Metallic parts that have not been decomposed can be scrubbed with clean, fine and clean silk cloth impregnated with cleaning agent (to avoid fiber shedding and adhesion to parts). When cleaning, all grease, dirt, glue and dust adhering to the wall must be removed.
7, non-metallic parts should be removed from the cleaning agent immediately after cleaning, not a long time soaking.
8. The bolts on the flange must be tightened symmetrically, step by step and evenly during assembly.
9. After cleaning, it is necessary to be washed after the volatilization of the cleaning agent (available silk wipe without immersion cleaning agent) assembly, and it will rust and be polluted by dust for a long time.
10. The disassembly and decomposition operation can only be carried out after the upper and downstream pipelines of high temperature and high pressure valves have been truly relieved of pressure.
1. Use grease for lubrication. Grease should be compatible with metal materials, rubber parts, plastic parts and working media of high temperature and high pressure valves. When the working medium is gas, such as special 221 grease can be used. Grease is applied to the surface of the seal mounting tank, grease is applied to the rubber seal, and grease is applied to the sealing surface and friction surface of the valve stem.
2, decomposition and reassembly must be careful to prevent damage to the sealing surface of parts, especially non-metallic parts, take out the O-ring when using special tools.
3. New parts should also be cleaned before assembly.
4. Cleaning agent should be compatible with rubber parts, plastic parts, metal parts and working media (such as gas) in high temperature and high pressure valves. Working medium for gas, available gasoline (GB484-89) cleaning metal parts. Non-metallic parts should be cleaned with pure water or alcohol.
5, the assembly should not allow metal debris, fibers, grease (except specified use) dust and other impurities, foreign bodies and other pollution, adhesion or stay on the surface of the parts or into the cavity.
6. The individual parts decomposed can be cleaned by immersion. Metallic parts that have not been decomposed can be scrubbed with clean, fine and clean silk cloth impregnated with cleaning agent (to avoid fiber shedding and adhesion to parts). When cleaning, all grease, dirt, glue and dust adhering to the wall must be removed.
7, non-metallic parts should be removed from the cleaning agent immediately after cleaning, not a long time soaking.
8. The bolts on the flange must be tightened symmetrically, step by step and evenly during assembly.
9. After cleaning, it is necessary to be washed after the volatilization of the cleaning agent (available silk wipe without immersion cleaning agent) assembly, and it will rust and be polluted by dust for a long time.
10. The disassembly and decomposition operation can only be carried out after the upper and downstream pipelines of high temperature and high pressure valves have been truly relieved of pressure.
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