1. Double-socket sleeve is a common pipe connection fitting, mainly used for connecting the straight pipe part of ductile iron pipe. It is a joint with sockets at both ends. Its main function is to transform the straight pipe socket into a socket connection, thereby changing the pipe connection method. This kind of sleeve is very common in municipal water supply pipe networks and tap water pipe networks, and is one of the indispensable pipe fittings.
2. Functions and applications of double-socket sleeve
The function of double-socket sleeve is not limited to connection, but also can perfectly utilize the short pipe without socket cut in the project. Through the pipe clamp, all broken pipes can be connected to the main line, avoiding the waste of the short pipe left by cutting during construction. In addition, double-socket sleeve is also widely used in water supply and drainage, heating, gas, petrochemical and other fields.
3. Material and standard of double-socket sleeve
Double-socket sleeve is usually made of ductile iron, which has good mechanical properties, such as minimum tensile strength of 420 MPa, minimum yield strength of 300 MPa, and minimum elongation of 7%. The production of double-socketed pipes must follow certain standards, such as international and national standards such as GB/T, ISO2531, and EN545.
4. Installation and maintenance of double-socketed pipes
When installing double-socketed pipes, it is necessary to pay attention to the fact that the interface must be in place to ensure the tightness of the connection and the overall performance of the pipeline system. In order to extend the service life of double-socketed pipes, the pipelines are usually treated with anti-corrosion, such as using asphalt paint coating, especially in pipelines that transport gas.
5. Conclusion
In summary, double-socketed pipes are an important pipeline connection accessory with versatility, efficiency, and durability, and are widely used in various pipeline systems. When selecting and using double-socketed pipes, their materials, standards, installation methods, and maintenance requirements should be considered to ensure the reliable operation of the pipeline system.






