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Flexible Ecoflex pre-insulated pipe

Smart district heating and cooling networks

Solutions for heating and cooling water networks

The Ecoflex system provides a wide range of innovative and energy efficient pre-insulated pipes, fittings and accessories that can be used in a variety of building types and applications. It provides an easy and economical way to transport water for heating-, cooling-, and water distribution. The network installation can be handled quickly and efficiently, even in the most difficult conditions on site. 


Overview of district heating and cooling networks

District heating network

Application areas:

heating water icon   Heating water


Usage areas:

  • District heating
  • Biomass
  • Power plants
  • Remote boilers
  • Heat pumps


Cooling distribution network

Application areas:

chilled water icon    Chilled water


Usage areas:

  • District cooling
  • Geothermal


Pre-insulated pipes for district heating and cooling

uponor ecoflex pre insulated pipes

The smart system design of product lines provides seamless integration:

  • Ecoflex VIP for building work that requires flexible and low weight pre-insulated pipes easy to handle.
  • Ecoflex Thermo for pipe networks and house connections. Provides easy handling and flexibility.
  • Ecoflex Thermo PRO for the main pipe line in local heating networks. Provides excellent heat loss performance.
  • Ecoflex Quattro for all-in-one heating and domestic hot water connections.
  • Uponor at your service: design and site support, 5 day delivery times, cut-to-measure.
  • Quick and Easy and Wipex jointing technologies for fast installation.


Pre-insulated pipes for district heating networks

Ecoflex VIP

Uponor Ecoflex VIP is the next generation of pre-insulated pipes for outdoor pipe insulation​

Uponor Ecoflex VIP is the next generation of pre-insulated pipes for outdoor pipe insulation​

The new standard for local and district heating networks with outdoor pipe insulation:

Ecoflex VIP combines the best heat loss performance for flexible foam insulation pipes on the market with outstanding flexibility.
By adapting the groundbreaking Vacuum Insulated Panel (VIP) technology, heat losses can be reduced by up to 60%. The flexible design and small diameter help to reduce the installation time of the pipes by up to 20% compared to hard foam insulated flexible pipes, and by more than double compared to steel pipes.
Product catalogue
Ecoflex Thermo
uponor thermo single

Ideal for heating water supply

  • For energy efficient heating networks and house connections
  • Easily connected with reliable Wipex compression fittings or with well-known Quick & Easy fitting technology
  • The two-coloured centre profile in Uponor Ecoflex Thermo Twin prevents the mix up of flow and return lines when pipes are connected
  • Single and twin pipe configurations with diameters up to 125 mm


Product catalogue
Ecoflex Thermo Twin HP
Thermo twin pipe

The smart way to connect a heat pump

  • Just one installation step for a flow and return pipeline plus cable conduits
  • Coloured centre profile to avoid confusion of flow and return line
  • Suitable for heat pump applications, as it includes all connections within one pipe
  • Smaller trenches required
Ecoflex Quattro
uponor quattro

Easy transportation of heating and domestic hot water in one pipe

  • The all-in-one solution for connecting single buildings
  • Efficient and convenient installation
  • Flow and return pipes for heating and two service pipes for domestic hot water, including circulation (thermocouple)


Product catalogue
Ecoflex Thermo PRO
uponor thermo pro

Excellent energy efficiency with best-in-class flexibility all along the way

  • Delivers up to a 40 % heat loss improvement
  • Unique pipe construction and flexible PUR foam provides a high level of energy efficiency
  • Easily connected with well-known Quick and Easy fitting technology or traditional Wipex compression fittings
  • Marking on one of the service pipes differentiates flow and return pipes from each other
  • Ecoflex Thermo PRO Single is available in 25-125mm in 6 bar
  • Ecoflex Thermo PRO Twin is available in 25-63 mm in 6 bar


Product catalogue

Not an evolution but a pipe revolution

Product features and design

Product features and design

Product design

  1. Jacket pipe: Extremely flexible and durable
  2. Soft insulation: Flexible and easy to install
  3. VIP insulation: Outstanding insulation performance
  4. Centring profile: Clear identification of flow & return pipe
  5. PE-Xa service pipe: The most robust pipe available
Ecoflex VIP layers

Product features

  • System for hot water, warm tap water or cooling water
  • Single or Twin pipes
  • Operating pressure: 6 or 10 bar
  • Max. operation temperature: 95°C

Uponor Ecoflex VIP with outdoor pipe insulation
Main benefits

Reduce heat loss – Exceptional insulation performance

Keep the heat where it belongs

  • Lowest lambda value of 0,004 W/Mk
  • Up to 30 % smaller diameter compared to conventional soft foam insulated pipes
  • Up to 60 % reduction in heat loss through VIP technology
Ecoflex VIP Lambda value

Supreme Flexibility – Small diameter

Incredibly easy to install

  • Faster installation and less on-site disruption compared to steel pipes and hard PUR foam pre-insulated flexible pipes
  • Easier handling
  • Lower installation costs
Ecoflex VIP flexibility

Saving resources – Paving the way for net-zero​

Today and tomorrow

  • Fewer oil-based materials used during production
  • ~ 20% lower CO2 emissions over the life cycle of the installation
  • Positive contribution to meeting global sustainability standards
Ecoflex VIP Sustainability
Installation information

Installation of Ecoflex VIP pipes

warm tap water connection

From design to installation

  • Faster installation and less on-site disruption
  • Savings of up to 60% in installation time compared to steel pipes, and up to 20% compared to hard PUR foam pre-insulated flexible pipes
  • Easier handling, even in confined spaces
  • Ecoflex VIP is compatible with all Ecoflex accessories and fittings

District heating and cooling network fittings

Wipex fittings
Ecoflex wipex fittings

Uponor Wipex – Reliable connection without special tools

  • Wipex fittings to connect PE and PE-Xa pipes for hot and cold water service
  • Made of high quality DR brass
  • Available in PN 6 and PN 10
  • Easy to install without hemp and special tools
  • The sealing performance is unaffected by temperature fluctuations
  • Fittings for Uponor S-Press and RS connections


Product catalogue
Q&E fittings

Uponor Quick and Easy – Impressively simple and fast connection technology without seals

  • Innovative and permanently tight connection technology
  • Very high pull-out resistance
  • The pipe material acts as the sealing material, therefore O-rings not required

Uponor Ecoflex Thermo PRO installation with Q&E fittings

Have a look at our video on the left where we show how the insulation is peeled off and the process for making a secure connection with Q&E connections.


Ecoflex accessories
Ecoflex accessories

Accessories for heating, cooling and tap water networks

  • Protect connections in the ground
  • Seal pipe ends
  • Heat traced products: electrical components for cable connections
  • Ecoflex rubber end caps, insulation sets, connection sets, control units, Jacket joint sets, wall sealings and wall ducts
  • Ecoflex chambers


Product catalogue

Services for district heating and cooling distribution networks


 Ecoflex service pre cut pipe lengths   Pre-cut pipe lengths to the site as needed
 Ecoflex delivery service  24 to 96 h delivery service to the site depending on location

 Ecoflex support   Support from engineers with planning and layout


 Ecoflex product training   Product training and site support
 Ecoflex sales and distribution network  Extensive sales and distribution network

 Ecoflex quality management   Quality management system acc. to ISO 9001 and 14001

Fields marked with (*) are mandatory.

Brochures related to the Ecoflex system


Uponor Ecoflex Thermo and Aqua VIP

Sales Folder

PDF 3.73MB

Ecoflex System Tech Guide

Tech Guide

PDF 7.40MB

Uponor Ecoflex Thermo PRO brochure

Learn more about our new range of pre-insulated pipes

PDF 527.10kB


PDF 15.40MB

Ecoflex System Tech Guide

A technical guide on Uponor's pre-insulated pipes

PDF 7.40MB

Ecoflex Sales Brochure

Learn more about Uponor's range of pre-insulated pipes for local heat distribution

PDF 7.35MB

Ecoflex Thermo Twin Brochure

Learn more about our pre-insulated pipes for heat distribution, which can easily be connected to heat pumps

PDF 383.29kB

Uponor folder ecoflex quick and easy en 1089189

PDF 10.21MB