How is polyethylene pipe typically joined together?

Polyethylene pipe is typically joined together using plastic insert fittings and clamps. This method is well-suited for the flexible nature of polyethylene piping, allowing for a secure and leak-resistant connection. The plastic insert fitting is inserted into the end of the polyethylene pipe, and then a clamp is used to secure the fitting tightly against the pipe. This connection technique is particularly advantageous because it accommodates the thermal expansion and flexibility of polyethylene, making it effective for various applications, such as water distribution and irrigation systems.

Other methods, while applicable to different types of piping materials, do not provide the same compatibility and ease of use as plastic insert fittings for polyethylene. For instance, welding is commonly used for thermoplastics but is not the standard practice for polyethylene due to its specific joining methods. Screw fittings and compression fittings, although useful in various plumbing applications, may not offer the same optimal performance as plastic insert fittings when it comes to polyethylene pipes.