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Selection criteria of flexible rubber joints for ring pipe nuclear power plants

Time: May 30, 2020 󰃯 Reading times: 868 󰃳 Editor in charge: The sea 󰃗 Column: product focus

Introduction: The installation and use of rubber flexible joint must be carried out according to the relevant product data provided by the design and construction unit, and the performance of rubber joint material shall be integrated. The rubber joint should be used first according to the environment of the nuclear power plant. Second, there are

rubber Flexible joint Installation and use must be in accordance with the relevant product information provided by the design and construction units Rubber joint Material performance development. The rubber joint should be used first according to the environment of the nuclear power plant. Secondly, there are also some other technical parameters, such as specification, pressure, etc. choosing the appropriate product can ensure that the performance characteristics of flexible rubber joint can be brought into full play, so as to achieve the expected use effect. The service life of the pipeline, pump and gate valve is increased due to its good operation.
How to prolong the service life of pipes, pumps and valves?
1. Natural rubber: the nuclear power rubber joint made of natural rubber has large elasticity, high tensile strength, good wear resistance and drought resistance. Service temperature range: about - 60 to + 80, medium can be water, gas, etc;
2. Chloroprene rubber (CR): the chloroprene rubber joint has excellent oxygen and ozone resistance, so its aging resistance is particularly good. Working range: about - 45 to + 100. The medium is mainly seawater;
3. Nitrile rubber: it has excellent gasoline resistance, and the service temperature range is from - 30 to + 100. : corresponding products: oil resistant flexible rubber joint;
4. EPM (ethylene propylene diene monomer): it is a general rubber with long service life, with acid and alkali resistance, and the service temperature range is about - 50 ~ + 150. Corresponding product position: acid and alkali resistant flexible rubber joint. Medium: sewage;
5. Fluororubber (FPM): it is an organic elastomer produced by copolymerization of fluorine-containing monomers. Its characteristics of high temperature resistance performance up to 300, the corresponding products are: heat resistant flexible rubber joint.
Installation instructions for rubber flexible joint of nuclear power station:
1 Rubber flexible connection During pipeline construction, natural conditions must be maintained, and artificial deformation is not allowed during installation. When the pipeline medium is acid-base, oil-resistant, heat-resistant and other materials, the gear joint higher than the working pressure of the pipeline should be selected.
3. The normal available medium of rubber joint is 0-60 ℃ ordinary water. In case of oil, acid, alkali and other special media, high temperature and other corrosive hard, the corresponding special refractory rubber joint shall be selected, and it is not allowed to be used in series or blindly.
For nuclear power plant Rubber flexible joint EPM rubber is selected for a long service life of EPM. Corresponding product position: acid and alkali resistant flexible rubber joint. Its characteristics of high temperature resistance performance up to 300, the corresponding products are: heat resistant flexible rubber joint.
 Rubber joint_ Shock absorber_ Compensator Shanghai Huanjing Shock Absorber Co., Ltd

Shanghai Huanjing is a pipeline equipment manufacturer integrating R & D, manufacturing, sales and service. Its main products are: limited rubber joint, flexible rubber joint, flexible pipe rubber joint, rubber shock absorber and other pipeline products. The performance is reliable and can be customized according to needs. The products have been in short supply and sold well in domestic and foreign markets.

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