PLASSON’s range of poly pipe fittings can help you complete any irrigation project. PLASSON fittings are high quality, UV stablised and corrosion-free to deliver leak-free watering systems that last.

The metric compression fitting range offers reliable options for joining blue stripe poly pipe as well as lilac pipe for recycled water. PLASSON’s Rural range has been specially engineered to join ag green stripe pipe. The innovative red barbed ends allow PLASSON Rural poly pipe joiners to connect both metric and imperial dimension pipe.


PLASSON’s Quick Coupling Valve delivers easy control of pressurized water with a simple valve and key system.

This system can be installed almost anywhere with no power needed and no software required to make it work.  Just plug in the key, the valve is activated and water flows. Unplug the key, the valve closes and flow is switched off.

PLASSON also offers a lilac cap QVC for grey water and recycled water systems.

Increadingly, recycled water is now supplied to homes and businesses through purple pipes. These pipes supply water for flushing toilets, washing clothes and outdoor uses such as watering gardens in homes and businesses. The lilac cap QCV is designed to connect to recycled water supply to provide safe and secure connections for garden watering equipment, like sprinklers and hoses, as well as other irrigation tools.

PLASSON has always been a leading innovator – it was our technology that helped give the world the dual flush toilet cistern!

We are committed to providing a world-leading range of poly pipe joiners that deliver reliable. long-lasting PE pipelines.

PLASSON has always been a leading innovator – it was our technology that gave the world the dual flush toilet cistern!

We are committed to providing a world-leading range of poly pipe joiners that deliver reliable. long-lasting PE pipelines.

PLASSON products can be found in municipal water distribution systems, gas conveyance systems, industrial fluids transfer and wastewater systems and mines in over 80 countries around the world.


When it comes to water, wastewater and gas pipelines, poly pipe (or polyethyene/PE as it is also known) is hard to beat. The flexible nature of polyethylene pipe allows it to be used in colder climates – where it will not crack – and in situations where rigid pipe would require multiple elbows to make complex turns. Unlike other plastic piping, poly pipe connections do not use glue to solvent weld pieces together. Instead, specially designed fittings seal poly connections using compression – this is why they are sometimes known as compression fittings.

PLASSON has engineered a range of simple yet smart compression fittings to make joining poly pipe easy and reliable. All PLASSON poly pipe joiners feature a unique O-ring design that means the fitting will seal the moment it goes on the pipe – tightening the nuts on PLASSON compression fittings is only neccesary to hold the pipe in place and prevent blow outs.

This innovative design feature means PLASSON compression fittings go on and stay on… and on! They are easy to install with a minimum of tools. All PLASSON poly pipe joiners are corrosion-resistant and made of UV stablilised material for a long service life.

Here’s some step-by-step install guides to show you how easy it is to connect poly pipe with PLASSON:


Plasson compression fittings are reliable and leak-free



metric compression reduing fittings for 20 mm 63mm 110mm

Metric compression reducing tees Plasson Australia 63mm

So Electrofusion.. it’s a mix of electricity and fusion but what does that mean?

Electrofusion, or EF for short, is a method of joining PE pipe in situations where butt fusion is not practicable, like where valves, elbows and tees need to be added.


Specialised electrofusion fittings have electrical heating coils imbedded into them. When current is applied to these EF fittings, heat is created which melts the plastic of both the fitting and the pipe.

The plastic from both are forced to mix together under pressure due to the design of the fitting. Once the mixed plastic cools, the pipe and fitting are fused together permanently.

How does EF welding work?

The parameters of each fitting, like the fusion time, are recorded in the barcode on each fitting. These details are entered into the welding control box via a barcode scanner or some control boxes automatically detect a fitting’s settings when it is connected to the machine’s leads.

An electrofusion control box sends electrical current through metal coils inside the fitting. The current causes the metal to heat up. The plastic around the coils begins to melt and forms an expanding pool of hot, molten plastic. The melt pool from the fitting comes into contact with the surface of the pipe. The continued application of current causes the pipe surface to also melt.

The pipe melt and fitting melt is forced to mix as pressure builds up in the coupler area, due to the design of the fitting, forcing the two plastics together. This is key to producing a good weld. Following the end of the weld cycle, the fitting and the pipe are left to cool and the melted material solidifies to form a permanent joint.

Hot and cold zones, sometimes called melt and freeze zones, are formed when the wire coils heat up. The length of these zones is key to achieving melt pressure. The precise positioning of the coils in the fitting is also important to ensure uniform heat distribution.

Fusion parameters: temperature, pressure and time, are controlled by the electrofusion control box and it is fed parameters from the barcode on each fitting, or from the fitting itself. The electrofusion control box also records a report of the procedure with all the settings and data from the weld.

PLASSON has developed the SmartFuse system, which includes specialist fittings, a range of EF weld control boxes and an mobile phone app which guides installation, to help simplify the whole electrofusion process. Using the SmartFuse system makes welding quicker and easier. The automated process helps reduce errors and prompts installers to complete and double check all steps. You can read more about SmartFuse and watch our demonstration videos here…


PLASSON’s unique design delivers maximum flexibility including offering reliable, leak-free way to connect a number of pipe materials.

Any standard PLASSON fitting can easily adapt to connect several different pipe materials, pipe sizes and also be used as a threaded connection with the help of our handy range of conversion kits.


No-one wants to re-do welds so the best way to save time, money and hassles is to ensure each and every weld is done according to best practice.  The key to good electrofusion welding is contained in the POP001 guidelines for electrofusion installation.

POP001 was put together by PIPA, the Plastics Industry Pipe Association of Australia to detail the best practice processes and parameters for electrofusion welding. Following these steps will help ensure quality, long-lasting and reliable pipe connections, helping you be a better installer and achieve more reliable, leak-free EF welds.

This quick install video shows how the steps outlined in POP001 apply in the field.

see the best practice method to install a 125mm electrofusion coupler

PLASSON has developed the SmartFuse system to help make electrofusion welding simplier. All SmartFuse fittings have built-in resistors that automatically load the correct weld parameters for the fitting into PLASSON SmartFuse electrofusion weld machines.

Welding is made even easier thanks to the SmartFuse app.  It not only guides and prompts installers to complete all of the best practice steps in POP001, the SmartFuse app records this information and the weld record either on USB or in the cloud.

It is important to know and understand all the steps outlined in POP 001 as omitting steps or failing to complete processes adequately can undermine weld quality and lead to failed pipelines.

The processes outlined in POP001 are known as best-practice.  It is crucial to always follow best-practice as failure to do so can open operators up to claims of negligence and compromise insurance cover.

For a full copy of POP001, click here…