multilayer pipe system

Drinking water delivery

Uni Pipe and Uni Pipe PLUS

Uponor Uni Pipe - the way forward for hygienic plumbing installations

Uponor UK offer two systems within its Uni Pipe range for safe and reliable drinking water installations:

  • Multi-Layer Composite (MLC, Uni Pipe)- with over 3.8 billion metres of MLC sold since 1982, you can rest assured that this solution which combines the benefits of a metal and plastic pipe in one is the ideal choice for your next plumbing installation. The key features of this product include a 100% diffusion tight aluminium core for enhanced stability and a flexible polyethylene outer case. 
  • Seamless Aluminium Composite (SAC, Uni Pipe Plus)- developing the MLC range even further, Uponor's central innovation team in Germany have created the world's first composite pipe with a seamlessly extruded aluminium layer- SAC. This essentially ensures it is more flexible and bendable in tight installation situations in comparison to MLC. Other benefits include:
  • Available as straight lengths and coils
  • Reduced installation times
  • Less components required, which reduces costs
  • Uni Pipe Plus straight lengths feature a special aluminium layer that is more rigid than conventional MLC
  • Provides a visually attractive, on-wall mounting solution

    Pre-insulated MLC pipe is also available on request for special projects


Application areas:


plumbing installation   Tap water installation
plumbing installation  Radiator connection




Uni Pipe and Uni Pipe Plus
  • SAC                  16 - 32 mm
  • MLC 40 - 110 mm
  • Pre-insulated MLC          16 - 25 mm


  • S-Press PLUS 16 - 32 mm
  • RTM 16 - 32 mm
  • S-Press 40 - 75 mm
  • Modular riser fittings 63 - 110 mm


Uponor MLC- combines the benefits of a metal and plastic pipe

multilayer pipe portfolio
  • Available in dimensions 16 - 110 mm
  • 100 % oxygen diffusion tight multilayer pipe with corrosion resistance
  • Easy handling
  • Low weight
  • High inherent stability and enhanced flexibility
  • Low linear expansion
  • Excellent hydrostatic stress performance
  • Low pressure drop in the pipes due to a large internal dimensions


Uponor online catalogue

Uponor SAC - for fast installations

  • Up to a 40% narrower bending radius compared to conventional multilayer pipes
  • No adjustments - the pipe retains its shape perfectly after it has been bent
  • Up to 15% less fittings are required thanks to enhanced bending ability
  • 100% backward compatible with Uponor's MLC pipes and S-Press connectors
  • Hygienic pipes that meet drinking water requirements and guidelines


Uponor online catalogue
uponor uni pipe plus

Uponor Pre-insulated MLC pipe- fire resistant

 Uponor S-Press fittings

S-Press PLUS

Uponor S-Press PLUS – ensuring permanently tight pipe connections.

  • Resistant to any kind of drinking water
  • Unique press indicator
  • Precise jaw fixation
  • Fast diameter recognition
  • Accurate test safety function
  • Decreased pressure loss by up to 60%
  • 100% backwards compatible with existing Uponor components
  • Innovative QR code for access to support, databases and item list and ordering

The one with no compromise: Tough, Safe, Easy and Smart!


Read more about S-Press PLUS
fittings spress plus
Quick installation

S-Press PLUS - makes your life easier onsite

Large sizes

S-Press in dimension (63-75mm)

S press composite fittings large dimensions

The Uponor S-Press fitting (63-75mm) for riser installations is applicable for all sanitary facilities as well as for heating and cooling for both residential and commercial buildings.

  • Big dimensions available- contains a PPSU body
  • Fast installation with easy bevelling and no calibration
  • Free choice between Uponor RS portfolio and S-Press composite portfolio 63-75
  • Colour coded, with a test safety function
  • Stop ring segments for easy and precise jaw fixation
  • Approvals for drinking water and hygiene – all over Europe


Uponor online catalogue

Other Uponor Uni Pipe Plus fittings

RTM fittings

RTM system for tap water and radiator connection

RTM tool free fittings

  • RTMTM Technology = Tool-Inside concept - Ring with Tension Memory
  • Combines the lightest engineered plastic with the best mechanical features of metal
  • The memory effect ensures water tightness at all times
  • Ring applies a consistent pressure around the pipe, it absorbs any temperature fluctuations


Uponor online catalogue
Riser fittings
Modular riser fittings

Modular riser system for tap water

Modular riser system

Uponor Modular Riser System MLCP fitting uses just 40 parts to achieve more than 300 fitting combinations, up to 110mm, and features a distinctive “click and lock” mechanism which removes the need for overhead pressing.


Uponor online catalogue
Riser fittings
MLCP press fittings

Ideal for drinking water installations

prefabricted solutions hot water supply

Unique worldwide, the multilayer pipe system from Uponor is ideal for drinking water installations. The pipe is produced under the strictest hygienic conditions and is hygienically sealed off.

Thanks to its flexibility and stability, SAC is perfectly suitable for loop installations.


Your Uponor Hygiene Logic

  • Certified hygienic installation systems
  • The full system portfolio allows for a modern loop installation
  • Uponor products are delivered in hygienically sealed packaging
  • Our quality is frequently tested by independent institutes
Read more about hygiene

Loop installation

Loop installations are more hygienic than traditional systems, as the risk of standing or stagnant water is significantly minimised. In addition, there is no variance with the pipe dimensions and it is independent from outlet positioning. Other benefits include:

  • Less Fittings
  • Easy Install
  • More Mounting Possibilities
  • Eliminate Dead Legs
  • Improved Flow Rates

Brochures related to the Uni Pipe Plus System


Uponor plumbing systems and hygiene installation


Find out more about Uponor's complete range of plumbing solutions
PDF 19.32MB

S-Press Brochure

Learn more about our new range of composite fittings: S-Press Plus

PDF 630.52kB

Uni pipe plus

The new innovation in MLCP pipes. Contains a seamless aluminium layer for improved workability

PDF 2.74MB

Uponor MLCP Sales Guide

Learn more about our Multi Layer Composite Pipe solution

PDF 5.08MB

Uponor S-Press composite 63 and 75mm new

Learn more about the extension to the S Press range

PDF 459.21kB