Copper ball valve maintenance precautions

1. Copper ball valve in the closed state, the valve body is still inside the pressurized fluid
2. It is necessary to identify the ball valve, the downstream pipeline has been unloading pressure, the ability to open the split operation
3. Differentiation and re-installation of the need to be careful to avoid damage to the sealing surface of parts, especially non-metallic parts, remove the O-ring should use special tools
4. The bolt on the flange of the device is necessary to be symmetrical, stepwise and evenly tightened
5. Cleaners should be with the ball valve in the rubber parts, plastic parts, metal parts and operating media (such as gas) are compatible. When the working medium is a gas, the metal parts can be cleaned with gasoline (GB484-89). Non-metallic parts are cleaned with pure water or alcohol
6. The individual parts that can be separated can be cleaned by the immersion method. Metal parts that are left with undifferentiated non-metallic parts can be wiped with a clean, clean, dipped silk cloth (to prevent the fibers from falling on the parts). Cleaning must be removed all adhere to the wall of the grease, dust, plastic, dust and so on
7. Non-metallic parts should be removed immediately after cleaning from the cleaning agent, not long-term soaking
After cleaning to be washed wall cleaning agent after evaporation (can be used immersion detergent cloth rubbing) device, but not long-term placement, otherwise it will rust, dust pollution. New parts are clean and clean before installation
8. Smoothness using smooth grease. Smooth grease should be compatible with ball valve metal materials, rubber parts, plastic parts and working medium. When the working medium is a gas, for example, A thin layer of grease is applied to the surface of the tank of the seal device, a thin layer of grease is applied to the rubber seal, and the sealing surface of the stem and the friction surface are coated with a thin layer of grease
9. Equipment should not allow metal debris, fiber, grease (regular use of the outside) dust and other impurities, foreign body pollution, adhesion or stay in the surface of the parts or into the cavity.