Nowadays, the application of PE pipes is becoming more and more widespread in society, and they are also familiar to many people in water supply, drainage, gas, and other fields. However, you may not be very familiar with the ring stiffness of PE pipes. Below, the editor will explain it to you to deepen your understanding.
Ring stiffness actually refers to the resistance to external pressure. The load borne by pressure pipelines includes internal pressure and external pressure. The stress generated by internal pressure is usually the main factor causing pipe failure, and the form of failure is excessive deformation and rupture caused by tensile stress inside the pipe wall (plastic pipes are usually caused by creep). When designing, the calculation is generally based on the internal pressure load, selecting materials and structural data (such as wall thickness), and then considering the external pressure load for design verification. If necessary, the structural data can be modified. The ring stiffness of PE pipes is not always constant. For example, pipes with a diameter of 110 * 0.8mpa and a diameter of 315 * 0.8mpa, both of which are pipes with a pressure of eight kilograms, will not necessarily have a ring stiffness of 8sn, which means the ring stiffness of 8 kilograms. The larger the diameter of the pipe, the weaker the ring stiffness will be. There is also a situation where changes in temperature also have an impact. As the weather temperature decreases, the hardness of the PE pipe also increases, so the natural ring stiffness will also increase.
After the introduction by the editor, I believe you have a better understanding of the ring stiffness of our company's PE pipes. In the future, the editor will continue to supplement your knowledge about PE pipes. Stay tuned.