Scrape off 0.1-0.2mm of the outer oxide scale in the fusion welding area of the pipe and remove the debris, and the end face is chamfered 2×45°.

The joint thickness should be greater than 7mm, and preheating is unnecessary if it is less than 7mm; if necessary, preheat both sides to 100 °C for 10 minutes or more before welding.

Installation requirements and steps:

The end of the pipe should be cut flat and perpendicular to the pipe axis.

The mating surfaces should be clean and free from oil, grease, or similar contaminants.

For example, if two pipes are joined together with an elbow fitting, they must have an inner diameter that equals or exceeds their outer diameter so that they fit snugly inside each other without causing any gaps between them.

The following steps can be used as a rough guide when installing HDPE electrofusion fittings but should not replace professional training and experience:

Please note the following instructions when using our electrofusion pipe fittings:

Notice of electrofusion fittings welding:

1. Pipe fittings should be unpacked before use to keep them clean and dry.

2. The pipe fittings with insufficient roundness of the pipe end should be restored before setting.

3. If the power cord is too long, too thin, or the voltage is unstable, an adjustable voltage stabilizer is required to ensure the stability of the power supply.

4. During the electrofusion welding or cooling time, no external force shall be applied to the pipe fittings and pipe fittings being welded.