What does the steel ring of water supply PE pipe mean? - Yuhong Industrial

The steel ring degree of PE water supply pipe actually refers to the external pressure index. The loads of pressure pipelines include internal pressure and external pressure. The stress generated by internal pressure is usually the main factor causing damage to PE pipelines. Damage occurs in the form of excessive deformation and fracture caused by tensile stress in the pipe wall (usually caused by creep in plastic pipes). This design is generally based on the internal pressure load, material selection and structural data (such as wall thickness, etc.) calculated by the design, and then the external pressure load is considered for design verification, and the structural data is modified if necessary. The ring stiffness of PE pipe is actually not constant.

For example, de110*0.8 MPa PE pipe

Ring stiffness refers to the external pressure load resistance capacity of pipes made of polymer composite materials (such as PE water supply pipes, PVC- U water supply pipe, steel strip PE pipe, etc.), the full name is hoop bending stiffness, which is a method of measuring the pipe's resistance to hoop deformation. Test methods or calculation methods can be used.

The steel ring degree of PE water supply pipe actually refers to the external pressure index. The loads of pressure pipelines include internal pressure and external pressure. The stress generated by internal pressure is usually the main factor causing damage to PE pipelines. Damage occurs in the form of excessive deformation and fracture caused by tensile stress in the pipe wall (usually caused by creep in plastic pipes). This design is generally based on the internal pressure load, material selection and structural data (such as wall thickness, etc.) calculated by the design, and then the external pressure load is considered for design verification, and the structural data is modified if necessary. The ring stiffness of PE pipe is actually not constant.

For example, the PE pipe of de110*0.8 MPa and the PE pipe of de315*0.8 MPa are also 8kg pressure pipes, but it does not mean that it will be 8sn, that is, the ring stiffness of 8 cows. As the pipe diameter increases, the ring stiffness decreases accordingly. In another case, temperature changes are also affected. As the weather temperature decreases, the hardness of the PE pipe increases. Natural ring stiffness also increases.