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Ball Valve Need To Be Cleaned Before Assembly
Oct 11, 2017

Ball valve is a pipe used to cut off, the distribution of changes in the direction of the media to change the device, in use only need to rotate 90 degrees of operation and a small turning torque can be closed tight. In the use of ball valve need to pay attention to what? Today, mainly to introduce the use of ball valve precautions, hoping to help everyone.

1, must first identify the ball valve, the downstream pipeline has been unloading pressure, in order to disassemble the decomposition operation.

2, non-metallic parts should be immediately removed from the cleaning agent, not a long time soaking.

3, the assembly of the flange on the flange must be symmetrical, step by step, even tighten.

4, cleaning agents should be with the ball in the rubber parts, plastic parts, metal parts and working medium (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 washed with pure water or alcohol.

5, the decomposition of each single ball valve parts can be washed with immersion method. Metal parts that are left with undecomposed non-metallic parts can be scrubbed with a clean, fine, dipped silk cloth (to prevent fiber from falling off on the part). Cleaning to remove all the adhesion of the wall of grease, dirt, plastic, dust and so on.

6, ball valve decomposition and re-assembly must be careful to prevent damage to the sealing surface parts, especially non-metallic parts, remove the O-ring should use special tools.

7, after cleaning to be washed wall cleaning agent after evaporation (can be used to clean the cloth soaked cloth) for assembly, but not for a long time shelved, otherwise it will rust, dust pollution.

8, the new parts need to be cleaned before assembly.

9, use grease lubrication. Grease should be compatible with ball valve metal material, rubber parts, plastic parts and working medium. When the working medium is a gas, use special gas such as special 221. Apply a thin layer of grease to the surface of the seal mounting groove, apply a thin layer of grease to the rubber seal, apply a thin layer of grease to the sealing surface and friction surface of the valve stem.

10, the assembly should not allow metal debris, fiber, grease (except for the provisions of the use of) dust and other impurities, foreign body pollution, adhesion or stay in the surface of the parts or into the cavity.

Preparation of ball valve before installation

1, before and after the pipeline should be coaxial, two flange sealing surface should be parallel. Pipes should be able to withstand the weight of the ball valve, otherwise the pipe must be equipped with appropriate support.

2, the valve before and after the pipeline clean, remove the pipeline of oil, welding slag and all other impurities.

3, check the ball valve logo, identify the ball valve intact. The valve fully open all closed several times confirmed that its work is normal.

4, remove the ball valve at both ends of the connection flange on the protection.

5, check the valve hole to clear the dirt may be, and then clean the valve hole. Even if only small particles of foreign matter between the seat and the ball may damage the valve seat





Yuhuan Sinpo Valve Co.,LtdTel: +86-576-89903137