Poly Compression Coupling (R41) – Joiner for Poly (PE) Pipe, 20mm to 32mm

Poly Compression Coupling for Joining Poly Pipe

The R41 Series Poly Compression Coupling is a simple, reliable way to join two poly (PE) pipes of the same size. It uses a compression system that grips the pipe and seals as you tighten the nut, giving a secure, leak-free join without glue, heat or fusion gear. Built for irrigation, rural and general water lines, it is a fitting that goes together quickly in the field and holds up out in the weather.

A Secure, Leak-Free Join

The coupling is made to connect same-size PE pipe ends and hold them tight under pressure. As you screw down the compression nut, the internal split ring and seal clamp onto the pipe, so the join stays put and stays watertight. It is a dependable joiner for running new line, extending an existing run, or repairing a damaged section of poly pipe.

Durable Polypropylene, Built for Outdoors

The body is made from tough polypropylene, with a compression seal system inside, so it resists corrosion and rust and stands up to sun and weather far better than metal fittings. It is rated to PN16 (16 bar) across this size range, which suits typical irrigation and rural water pressures, and its UV and impact resistance means it keeps performing in exposed, outdoor installations.

Easy to Install, No Special Tools

One of the big advantages of compression fittings is how quick and easy they are to fit. There is no gluing, welding or special equipment needed. You loosen the nut, cut and prepare the pipe, push it into the fitting to the correct depth, and tighten the nut to make the join. The connection can also be undone later for changes or maintenance, which makes it handy for systems that get reconfigured.

Sizes and Uses

This coupling is available in three sizes to match common poly pipe: 3/4" (R41-20, 20mm), 1" (R41-25, 25mm) and 1 1/4" (R41-32, 32mm). It suits irrigation and water distribution, rural and farm water systems, garden and greenhouse setups, and general PE pipe runs and repairs around the property.

Key Features & Benefits

• Joins two same-size poly (PE) pipes with a compression seal
• Secure, leak-free connection under pressure
• Tough polypropylene body, corrosion and rust free
• UV and impact resistant for outdoor use
• Rated to PN16 (16 bar) in this size range
• Quick to install with no glue, heat or special tools
• Can be undone for changes and maintenance

Product Details

• Product: R41 Series Poly Compression Coupling
• Function: Joins two same-size poly (PE) pipes
• Body material: Polypropylene
• Pressure rating: PN16 (16 bar)
• Available sizes: 3/4" (R41-20 / 20mm), 1" (R41-25 / 25mm), 1 1/4" (R41-32 / 32mm)
• Best for: Irrigation, rural and general poly pipe systems

How to Install

Loosen (but do not remove) the compression nut on each end of the coupling. Cut the poly pipe square and clean off any burrs. Push the pipe firmly into the fitting past the seal and up to the internal stop, then hand-tighten the nut firmly to lock and seal the pipe. Repeat on the other side, then pressurise and check for leaks, tightening a little more if needed. No glue or tools are required, though a hook tool can help on larger nuts.

Frequently Asked Questions

What is a poly compression coupling used for?
It joins two poly (PE) pipes of the same size with a compression seal, giving a secure, leak-free connection for irrigation and water lines without glue or heat.

What sizes are available?
It comes in 3/4" (R41-20, 20mm), 1" (R41-25, 25mm) and 1 1/4" (R41-32, 32mm) to suit common poly pipe sizes.

What is it made from?
The body is polypropylene, which is corrosion free, rust free and UV resistant, with an internal compression seal system.

What pressure is it rated to?
It is rated to PN16, meaning up to 16 bar, across this size range, which suits typical irrigation and rural water pressures.

Do I need special tools to fit it?
No. You cut and prepare the pipe, push it in and tighten the nut by hand. No glue, welding or special equipment is needed, and the join can be undone later if required.

Can I use it for drinking water?
It is intended for irrigation and rural or general water systems. For potable (drinking) water or certified plumbing work, check that the product carries the required WaterMark certification for that use.

Where can I buy poly compression couplings in Australia?
They are available online from BPG Supplies, with shipping across Australia and local pickup in Bonnyrigg, NSW.