We have briefly introduced the knowledge of PE gas pipes before, but we have not discussed the knowledge of mechanical connections. Since a friend left a message for me, let's take a look at the knowledge points in this area together.
Mechanical connections include two types: clamp type connections and compression type connections. Although PE gas pipeline systems mainly use water melt connections and electric melt connections, in some applications, mechanical connections are more convenient and economical for PE gas pipeline systems. For example, in the repair of pipeline systems, it is sometimes inconvenient or impossible to use hot melt or electric melt connections. For example, when repairing damaged buried pipelines in a pit, the site conditions cannot guarantee that there is no water at the connection point. If a small number of large-diameter pipelines need to be connected in the field, using hot melt connections may require specialized equipment, which may be uneconomical.
Also, mechanical connections are required when connecting PE gas pipelines to other pipelines.
PE gas pipe is a replacement product for traditional steel pipe and PVC gas. Gas pipes must withstand a certain amount of pressure, usually using materials with high molecular weight and good mechanical properties. Reliable connection and good impact resistance make it widely used.