Post Tagged with: "Polyethylene Pipes"

Methods of Thermal Fusion for Polyethylene Pipes

Stack of Pipes in a FactoryHigh-density polyethylene (HDPE) or polyethylene pipes as they are simply called are currently the primary choices in all industrial and residential applications. This is because of their durability and corrosion, fatigue and leak resistance.

HDPE pipes are also eco-friendly and allow for trenchless installation. There are various methods of joining polyethylene pipe fittings and pipes to suit your application.

The typical approach is heat fusion which joins two pipes at a set force and temperature, which causes melting and fusion of the two pipe ends. Here are the various types of heat fusion for polyethylene pipes.

Butt Fusion

This is the most prevalent technique of joining polyethylene pipes. Butt fusion results in a flow-efficient, economical and permanent connection. It can align your pipe ends, clamp pipes and turn your pipe ends square and parallel to a pipe’s centreline. Butt fusion can also join pipes of different wall thickness under special circumstances.

Saddle Fusion

This technique involves heating of a pipe’s external surface and its matching surface on a saddle-type fitting to an ideal fusion temperature.

Saddle fusion allows better force and alignment control of your pipe connection. A machine should only do this thermal fusion method unless the pipe’s manufacturer expressly allows hand fusion.

Socket Fusion

In this fusion technique, your pipe external and the fitting’s internal surface are heated to their ideal fusion temperature then held until they cool.

Socket fusion needs less pressure compared with butt-welding and is typically used to join small pipes of 4 inches or less. The machinery used for socket fusion is also more portable compared with that used in other techniques.

The thermal fusion methods mentioned above are the common options since they result in pipes that can handle high pressures and have high tensile strength. Properly thermal fused joints are also leak proof. This is however only possible provided you get your pipes from a manufacturer with high-quality products.

July 4, 2018 at 5:11 pmStraight Study