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PE Compression & Plasson Pipe Fittings

Iplex brings you Plasson compression fittings, the solution for leak-free, secure PE pipe connections. Designed for irrigation, plumbing, and industrial applications, these poly compression fittings offer fast installation.

With couplings, elbows, tees, reducers, and tapping saddles in sizes 16mm to 160mm, they cater to everything from small domestic jobs to large-scale commercial projects. View the range today below.

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Our PE Compression & Plasson Pipe Fittings range

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Applications

Applications

Mechanical connections and branches on PE pipes used in:

  • Water supply
  • Pressure sewer
  • Chemical dosing
  • Plasson fittings are available to join PE pipes to CU, PVC, PB, PEX, GS, CPVC, uPVC, ABS and rural Poly

Advantages

The following outlines the features and benefits of Plasson Compression Fittings

Features Benefits
Ease of use Fittings are hand tightened on all rural poly pipe sizes and hand tight plus ½ turn with wrenches on metric pipe 40mm and above.
Strong Plasson compression fittings exceed many of the mechanical requirements specified within the Australia/New Zealand standard.
Abrasion and corrosion resistant PE has high abrasion resistance - the Plasson fitting body encapsulates the PE pipe, typically allowing the transport of abrasive materials.
Tough

Plasson compression fittings are made from a polypropylene copolymer which has high resistance to impact and mechanical damage.

UV stable Plasson compression fitting resin formulations contain Carbon Black to inhibit UV degradation. Carbon Black imparts high UV resistance over long periods in harsh Australian environments.
Lightweight Plasson compression fittings are easy to transport and use in some of the most difficult in-trench, overhead, above and below ground conditions.

Material Options

Material Options

Chemical Resistance

Plasson compression fittings comprise of a polypropylene copolymer body, NBR O-ring and acetal (POM) split ring. It is important when determining suitability for the transport of fluids containing chemicals that each of these materials are checked for compatibility. Where chemical resistance is not ideal for the split ring or O-ring, Plasson products made from alternative materials can be sourced on request that may be compatible. 

Like polyethylene, polypropylene also has very good chemical resistance properties; however, some differences exist, and checks should be made when determining suitability for the transport of chemicals.

Product Details

Product Details

Standards and Approvals

AS/NZS 4129:2008 | Watermark EMCS 2016

Colours and Markings

Black bodies. Note some parts are of different colour. Plasson fittings are supplied in some international markets with a grey nut. (This is displayed in Plasson’s online 3D CAD drawings)

Range and Dimensions

Iplex offers a comprehensive selection of Plasson pipe fittings, engineered for secure, leak-free connections in polyethylene (PE) pipe systems. These poly compression fittings are ideal for irrigation, plumbing, and industrial applications, ensuring quick and hassle-free installation without the need for special tools.

The Plasson compression fitting range includes couplings, elbows, tees, reducers, end caps, and mechanical tapping saddles, catering to various pipeline configurations. With sizes ranging from 16mm to 160mm, these PE compression fittings suit small domestic setups through to large-scale agricultural and commercial systems.

For branching connections, Iplex supplies Plasson mechanical tapping saddles, allowing for efficient and secure access points along the pipeline. Featuring an innovative bolt-free and hinged design, these compression pipe fittings make installation faster and more convenient, reducing downtime and labour costs.

Iplex’s Plasson fittings deliver trusted reliability, durability, and ease of use. From PE couplings to threaded couplings, these poly compression fittings are designed to meet the needs of professional installers and DIY users alike, providing strong, long-lasting connections for PE piping systems.

Handling & Storage

Handling & Storage

Plasson fittings are often used above ground in harsh environmental conditions. Therefore there are typically no special protection requirements for handling and storage other than the fittings should not be exposed to impacts and be kept clean and free of debris or contaminants which may interfere with their installation or performance once installed.

Installation & Testing

Installation & Testing

Plasson’s sales catalogue is downloadable at www.plasson.com.au and contains easy to follow, illustrated installation instructions for each fitting type.

 The Plasson range is compliant with AS/NZS 4129 which has extensive pressure, mechanical and material test requirements. Internal pressure testing limits are consistent with the requirements of the pipeline.

FAQ

Does the whole Plasson compression fitting range have 16 bar pressure capacity?

The majority of Plasson’s compression fitting range is rated to 16 bar, however some fittings have a lower pressure capacity – if in doubt, consult with Plasson sales staff or view Plasson’s online sales catalogue – visit www.plasson.com.au

What sort of tools do I need for installation?

No tools are required to install rural fittings.

On metric pipe sizes 40mm and above where fittings are hand tightened plus ½ turn with a wrench, Plasson ‘C’ spanners are recommended however common wrenches can also be used. Best practice on metric pipe installations is to use a deburring tool on pipe ends to remove sharp edges to prevent damage to O rings.

What is the temperature range of the fittings?

Plasson fittings are designed for use on cold water (20 °C) pipelines. The fittings can be installed in low temperature environments, although care should be taken to prevent impacts approaching 0 °C – at low temperatures polypropylene can experience brittleness. Fittings can be used up to 50 °C, however both the pressure rating and life expectancy of the fitting is reduced. Check with Plasson staff if the fittings are to be used at elevated temperatures.

Are the fittings resistant to chemicals?

The fitting components are made from polypropylene, NBR and acetal which are resistant to a wide range of chemicals. However each material has different properties and if the fittings are to be used in non-water applications installers should always check with Plasson sales staff if in doubt about chemical compatibility.

Are Plasson fittings high quality?

Yes, Plasson fittings are known for their high-quality, durability, and ease of installation.

They provide a reliable, leak-proof connection for polyethylene (PE) pipelines in irrigation, plumbing, and industrial applications.

Their compression and electrofusion fittings are designed to withstand high pressure and tough conditions, making them a trusted choice worldwide.

Can you reuse Plasson fittings?

Yes, Plasson compression fittings can be reused as long as they are in good condition.

Simply disassemble the fitting, inspect it for damage, and reinstall it on another PE pipe. However, for electrofusion fittings, reuse is not possible since they form a permanent welded connection.

What is a Plasson coupling?

A Plasson coupling is a compression fitting used to join two sections of polyethylene (PE) pipe. It consists of grip rings, an O-ring seal, and a compression nut, ensuring a secure, watertight connection.

These couplings are ideal for plumbing, irrigation, and industrial applications.

How do you tighten a Plasson fitting?

To tighten a Plasson compression fitting, simply:

  • insert the PE pipe into the fitting until it reaches the internal stop.
  • hand-tighten the compression nut.
  • use a wrench to firmly tighten the nut, ensuring a leak-free seal. Avoid overtightening, as this may damage the fitting or pipe.

Is it OK to reuse compression fittings?

Yes, compression fittings like Plasson’s can be reused if undamaged.

Always inspect the O-rings and grip rings before reuse to ensure they maintain a secure and leak-proof seal.

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