Poly Welding

Polyethylene welding is the process of joining polyethylene (PE) pipes and fittings together. There are three types of poly welding: butt fusion welding, electrofusion welding, and extrusion welding.

Types of Poly Welding

At G&M Poly, we’re proud to offer our customers various poly welding services suitable for their needs.

Butt Fusion Welding is commonly used to join high-density polyethylene (HDPE) pipes. This method requires appropriate temperature, time, and extreme pressure to ensure a sound weld. 

HDPE pipe welding using the butt fusion method requires a specialised machine that holds and heats the two pipe ends. These are then pressed together under pressure for some time until it cools. 

However, the challenge in using this welding technique is the probability of welding flaws and the reduction of the material’s structural strength. That’s why it’s crucial to conduct a thorough inspection to assess the quality of the weld.

Electrofusion welding is used in conditions where butt fusion is not viable. This happens when there is a need to add valves, elbows, and tees.

HDPE welding using the electrofusion method is performed using a moulded socket fitting that has a built-in electrical resistive heating coil. This coil melts the inside of the prefabricated fitting and the outside of the pipe wall.

When properly made, the resulting homogeneous joint can be as strong as the original pipe.

The last type of poly welding is extrusion. This is performed using a hand tool known as an extrusion welder. Specialists use this tool to join tanks and pipes made from thicker materials.

Extrusion welding heats and melts a plastic filler material while simultaneously heating the base material to prepare it for welding. The plastic filler material is then extruded onto the heated base material.

While this method is common in HDPE welding, it can also be performed on other thermoplastic materials such as polyvinyl chloride (PVC), polypropylene (PP), and polyvinylidene fluoride (PVDF).

Poly Welding for All Industries

At G&M Poly, we provide attested poly welding solutions for all industry sectors, including:

  • Pipe & Riser Systems
  • Irrigation Outlets
  • Bay Outlets
  • Water Monitors
  • Pivot & Lateral Move Irrigators
  • Pumps
  • Automated Irrigation Systems

We also fabricate a range of poly solutions such as:

  • Pontoons
  • Floatation platforms
  • Bore casings
  • Water delivery systems
  • Storage devices
  • Filtration equipment
  • Stock troughs

Our accredited service engineers operate our state-of-the-art welding machines. Furthermore, we work with specialists with years of hands-on experience in poly welding and installation.

Help us help you! Contact us, and let’s begin custom-designing your needs to your specifications and budget. 

You can find us in North Central Victoria, but we provide poly welding services across Australia.

For Poly Pipe Sales, Fabrication and Service Contact G&M Poly

Email us at enquiry@gmpoly.com.au or phone 03 5456 2233