isoflex

isoplus’ pre-insulated isoflex pipe is a bonded pipe system, perfectly suited for branch lines in district heating systems operating at high temperatures and pressures.

isoflex pipes consist of a steel carrier pipe and a robust LLDPE jacket pipe bonded into a fixed sandwich structure with flexible polyurethane insulation. The flexible insulation and the LLDPE jacket pipe provide maximum flexibility ensuring fast and easy installation. Delivery in lengths up to 100 m makes installation of branch lines easy and eliminate unnecessary waste of material.

isoflex pipes are provided with aluminium diffusion barriers between jacket pipe and polyurethane foam.

This ensures optimal insulation and low heat loss throughout the service life of the system and lambda values as low as 0.0225 W/m°C.

Leak detection system

If you require electronic leak detection in your district heating system, isoplus can deliver steel pipes with two copper wires integrated to connect with a leak detection system.

Application

District heating, district cooling, solar heating, community heating

Carrier pipe material: Steel P195GH
Jacket pipe material: Bimodal – LLDPE
Insulation: Polyurethane foam, blown with cyclopentane

Max. continuous operating temperature 120ºC for 30 years
Mulfunction 140ºC for 300 hours
Max. operating pressure 25 bar
Delivered lengths: 100 m
Dimensions: 20-28 mm

Technical specifications

isoflex: design – laying rules – components

At isoplus you can always get professional support from project start until the piping system is installed.

We can help with turnkey solutions, planning, design calculations, feasibility study, trenchless technology, tool hire, alarm report, planned preventative maintenance, installation of joints and installation of leak detection system.

Read more about isoplus service & support.

Contact us

T +44 1302 276976
E sales@isoplus.co.uk

Find your local sales office

Case references

34 km of district heating pipelines in the Netherlands

Surplus heat for 120,000 homes ISOPLUS Benelux as well emphasizes on reducing the CO2 emissions and on a future where we depend less on natural gas. An important step in this direction is the contract for the supply of pipes to Gasunie*, the Netherlands, and their...

Many years of cooperation with HOFOR – create durable solutions

The good cooperationThe cooperation between HOFOR and isoplus dates back more than 10 years and involves many projects in the Greater Copenhagen area. Because isoplus has a local service department in Hvidovre we were able to provide efficient and prompt service to...

Green transition in Gentofte, Greater Copenhagen

The increasing gas prices, the enforcement notice of the phasing out of oil and gas heating as well as the actual international conditions, have resulted in a nationwide growing focus on and wish for a quick switch to district heating in Denmark. This goes for the...

District heating right on time thanks to pragmatic co-operation

2021 was not the easiest year for planning and implementing large projects. But thanks to a flexible cooperation, TVIS still managed to advance 28 km further towards green economy. When district heating has to move over long stretches in the Triangle Region, the heat...

Unique solution in glasgow

Knowledge of the industry and special know-how are the keys to efficient and innovative solutions – and isoplus UK really made use of it when the company delivered and installed 800 metres of preinsulated pipes of the isoplus 2 series to the Glasgow University Campus....

District heating in the fells require technical consultancy

Over the last decade, Norway has made large investments in environmental district heating. Previously, Norway had access to very cheap electricity based on hydropower but the past 10 years' increasing electricity prices and growing urbanization have made district...

Rerouting pipelines to make way for light rail transit

Light rail transit is making its entry in the bigger cities of Denmark, and in the capital area a new light rail is scheduled to open in 2025 with 29 stations between the cities Ishøj and Lyngby. The light rail system is a comprehensive project, as a large number of...

District heating under the inlet in Hadsund

Establishing a 300-meter district heating pipeline may not sound all that spectacular, but there was something special about this project, when the southern part of Hadsund was connected to the northern city's district heating. The pipe had to be laid 1 meter below...

Trenchless technology to large project in Horsens

When 200 km of pipes and 180 km of service connections is to be buried, it is impossible to avoid inconveniences for the citizens. Many roads need to be dug up, which can cause traffic issues, broken roads, and frustrated citizens. In order to protect the surrounding...

Innovative project with new energy station in Tårnby

Tårnby Public Utility paves the way with a new visionary project in which an energy station will become the new gathering point for the area's district heating and cooling. Here the two systems will utilize the energy from the waste water. The plant will be the first...