The most widely used method for joining individual lengths of PE pipe and pipe to PE fittings is by heat fusion of the pipe butt ends. This technique produces a permanent, economical and flow-efficient connection. Quality butt fusion joints are produced by using trained operators and quality butt fusion machines in good condition.

This technique of heat fusion joining is different from the conventional fusion joining method. The main difference between conventional heat fusion and electrofusionis the method by which the heat is applied. In conventional heat fusion joining, a heating tool is used to heat the pipe and fitting surfaces. The electrofusionjoint is heated internally, either by..

After the pipe is inspected, the trench is filled in. Before completing the project, the pipeline integrity must be verified using sondnesstesting. Pressure tests are performed to ensure the safety, reliability, and leak tightness of pressure systems. A pressure test is required for a new pressure system before use or an existing pressure system after..

“Pigs” are inserted into the pipe to clean it out. When the pigs eventuallyexit the far end of the pipe clean, then the line will be filled with dry air. Air compressors pump up the air, and the air is run thru a drier. A pig may discharge from the pipeline with considerable velocity and..