Pressure Bearing Capacity Of PE Pipes

The use of PE pipes in the industry can be said to be quite common. During the welding process, due to its many turning points and high stress, it may become a weak link in the pipeline system. Therefore, it is necessary to conduct comparative tests on the hydrostatic strength of welded pipe fittings. Next, let's briefly understand the pressure bearing capacity of PE pipes:
In practical engineering applications, the pressure resistance level of bent pipes should be one level lower than that of polyethylene water supply pipelines of the same grade, while the pressure resistance level of equal diameter Sanyuan should be reduced by two levels.
2. The production process of PE welded pipe fittings should be strictly controlled, and reasonable process parameters should be formulated to ensure product quality.
3. Develop relevant standards for welded pipe fittings and set reliable stability coefficients for the fittings.
4. Effective measures can be taken in specific engineering applications to strengthen the welds of polyethylene water supply pipes by binding or pouring concrete. How to check the welding quality of PE pipes is to visually observe the appearance of the welding ring to check its quality. The qualified welding joint is not damaged, deformed, or discolored, and the small pillar in the hole rises normally. After welding the pipe fittings, the markings are obvious. However, the reliability of this method is not high, as it cannot detect defects in the connection area and cannot guarantee the reliability of the connection.
The two methods are destructive testing. Perform tensile, bending, tensile creep tests, etc. at the melting point.