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Maintenance Of Cast Steel Ball Valve Should Pay Attention To The Seven Matters
- Jun 26, 2017 -

Cast steel ball valve is a very common ball valve, the development of the industry can not be separated from cast steel ball valve, then it is what kind of product? How is it designed? On this common problem, we simply introduce, hope to help users.

Cast steel ball valve design and manufacturing process, due to computer aided design (CAD) and computer aided manufacturing (CAM) and flexible manufacturing system (FMS) in the valve industry applications, the ball valve design and manufacturing to a new level. Not only a comprehensive innovation of the valve design and calculation methods to reduce the professional and technical personnel heavy repetitive routine design work, so that technical staff have more energy for improvement, improve product performance and new product development, shorten the research and development cycle of new products , And comprehensively improve the labor productivity, but also in the lift rod metal seal ball valve research and development process, due to the application of CAD / CAM, there has been a computer-aided design, computer-aided CNC machine tool manufacturing stem spiral flat, metal seal Ball valve in the process of opening and closing without any abrasions and wear, so that the ball valve sealing and greatly enhance the service life. When the ball valve is fully open, the flow resistance is very small, almost equal to zero, so the isoparametric ball valve is widely used in oil and gas pipeline, because easy to clean the pipeline. As the ball of the ball in the opening and closing process with a wipe, so most of the ball valve can be used for suspension of solid particles in the medium, according to the sealing ring material can also be used for powder and granular media.

1, must ensure that the ball valve, the downstream pipeline to determine the pressure has been removed in order to disassemble maintenance operations.

2, disassembly and reassembly must be careful to prevent damage to parts and sealing surface, especially non-metallic parts, remove the O-ring must use a dedicated tool.

3, if it is flange connection, re-assembly of the flange bolts must be symmetrical, step by step, even tighten. Can not force too light, the connection is not tight, can not be too much force, to prevent de-silk.

4, cleaning agents should be cast steel ball valve 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. Non-metallic parts can be cleaned with pure water or alcohol.

5, the decomposition of a single part 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 sticking to the part). Cleaning to remove all the adhesion of the wall of grease, dirt, plastic, dust and so on.

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

7, after cleaning to be washed wall cleaning agent volatile (can be used without cleaning detergent cloth) for assembly, but not for a long time to shelve, otherwise it will rust, dust pollution. And then re-equipped before the need to ensure that its dry and no dirt.