The extensive use of telescopic valves in various fields is directly related to the design of the product itself.
The expansion joint has reasonable structure and reliable sealing performance. It is suitable for transporting steel pipes, cast iron pipes, ductile iron pipes, PAC pipes and ABS pipes for water, oil, gas and granular powder. This series of expansion joints are metal products, with high tensile and compressive strength, excellent soft sealing performance, easy operation and other functions.
They are widely used in electric power, metallurgy, chemical industry, water supply and drainage, sewage treatment and other industries. They are mainly used to connect pumps, valves and pipes. This product has the function of multi-directional displacement during pipeline operation. Due to heating and cooling, crust subsidence and stress, it plays an important role in expansion and compensation of the pipeline during pipeline operation. Therefore, the use of expansion valve products can reduce the thrust of blind plate during pipeline operation and play a certain role in protecting the pipeline. Different types of expansion joints require different installation methods.
For chemical, petroleum, civil, environmental protection and other pipeline projects, the installation of expansion joints during construction must have corresponding technical standards for manufacturing, inspection and installation.
The application of pipeline expansion joints has various specifications, strong technicality, high quality requirements, and excellent installation methods and technologies, which need our constant research and exploration. In the process of installation and maintenance, the axial thrust can be transmitted back to the whole pipeline during operation by adjusting according to the on-site installation size. This not only improves the working efficiency, but also has a certain protective effect on pumps, valves and other equipment. Under the action of the cover and bolt in the pipe connection, the compression elastic deformation principle is used to force the sealing gasket to deform between the outer wall of the connector and the expansion pipe, so as to achieve static sealing.