The current working medium of the ball valve of the pipe jacking machine is mainly mud. The mud contains a certain amount of sand, stones and other solid substances that will wear, corrode and wash the ball valve pipes and balls, reducing the service life of the ball valve. This solution is temporarily designed to solve the problem of the ball valve. current situation.
ESDOM has rich experience in designing, producing and manufacturing ball valves since its establishment, and has certain solutions to the main technical difficulties of ball valves.
If the working medium is sand, there will be sand and stones that will impact the surface of the ball, causing serious wear and corrosion on the surface of the ball. It will not only reduce the service life of the ball valve but also cause leakage. This solution sprays WC on the surface of the ball to increase the surface hardness of the ball. Enhanced wear resistance of the ball and increased service life.
1. The working medium will also cause wear and corrosion to the valve body flow channel. This solution sprays tungsten carbide on the surface of the valve body flow channel to increase the hardness of the flow channel surface and enhance the wear resistance and corrosion resistance of the flow channel;
Solution:
2. The original inflexible rotation of the ball switch resulted in high torque and bending deformation of the valve stem. This plan improves the valve seat and valve stem so that the ball can rotate easily and flexibly, and the valve stem will not bend or deform;
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3. The fluid medium is sediment, which will be deposited in the cavity during use and cannot be ruled out, causing corrosion and wear of the ball valve. For this purpose, this solution adds a flushing port and a sewage outlet to flush the ball valve and prevent sediment from getting stuck.
Solution:
4. If the working medium is sand, there will be sand and stones that will impact the surface of the ball, causing serious wear and corrosion on the surface of the ball. It will not only reduce the service life of the ball valve but also cause leakage. This solution sprays WC on the surface of the ball to make the surface hardness of the ball. Improved, enhanced the wear resistance of the ball and increased its service life;
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5. The original rotation angle of the ball switch cannot be controlled, resulting in the ball and valve body pipeline not reaching the ideal state. This plan improves the positioning of the ball to ensure the rotation angle of the ball.
Solution:
Skills requirement:
① Design and manufacturing according to: enterprise standards;
② The structural length is according to: enterprise standards;
③ The flange standard is in accordance with the GB/T9113 standard;
④ Inspection and testing are in accordance with the GB/T 13927 standard;
⑤ After the experiment, remove the accumulated water, wipe the inner cavity, apply anti-rust oil and cover both ends of the diameter with stuffy caps to prevent dirt from entering;
⑥ The surface of the ball is sprayed with carbide to enhance wear resistance.
WESDOM Group specializes in pipeline fluid systems: R&D, production and sales of valves, pipe fittings, water meters, flow meters, etc. The products cover cast iron, cast steel, stainless steel, copper, plastics and other materials, which are widely used in hydropower stations, heat, buildings, Water supply and drainage, petroleum, chemical industry, electric power, medical and other fields.
In terms of quality control, we have strict control procedures. From the raw materials entering the factory to the final product leaving the factory, after 24 quality inspection passes, each pass must ensure that the product quality is 100% qualified before it can flow into the next process, thus ensuring that the qualified rate of the finished products. WESDOM products can well meet the Chinese standard like GB, JB, HB; American standard like API, ASME, AWWA; British and EU standards like BS, EN, ISO; German standard DIN; Japanese standard JIS; Russian standard GOST and other standards.
With more than 20 years of continuous operation in the field of fluid control, our business covers 35 countries and regions around the world. The group’s 16 factories are located in Hebei, Liaoning, Shandong, Jiangsu and Zhejiang, and there are three branches in Zambia, Kenya and Tanzania in Africa. ; WESDOM Group focuses on the research and development, production and sales of pipeline fluid control systems, valves, pipe fittings, water meters, flow meters, etc.
The products cover cast iron, cast steel, stainless steel, copper, plastic and other materials, which are widely used in hydropower stations, thermal power, construction, supply Drainage, oil, natural gas, chemical industry, electric power, medical treatment, food and other fields. We are committed to providing our customers with best-in-class products and solutions through our efficient team, where superior delivery and satisfactory customer service are paramount.
