With the INSTAFLEX system, GF Piping Systems offers a complete solution package for buildings ranging in size from single-family detached houses through apartment blocks right up to public or commercial buildings.


INSTAFLEX is a state-of-the-art plastic piping system for applications in the building technology. The main areas of application are hot and cold water, cooling systems and compressed air.

The INSTAFLEX system has been designed to meet the highest demands in a variety of applications, from distribution lines to individual extraction points.

Whether building a new house or remodelling an old one, this full plastic system offers a range of key advantages:

  • Cost-efficient prefabrication
  • Quick and safe handling and installation
  • Wide product range
  • Corrosion-free
  • Incrustation-free
  • Noise-insulating
  • Flexible

INSTAFLEX: The material

The INSTAFLEX system is made from polybutene, the ideal material for drinking water installations. It has been specially developed for applications in the building technology.

Of all the available full plastic systems, polybutene is subject to the lowest rate of thermal expansion. As the expansion forces are much lower, 30 times lower than steel and ten times lower than composite pipes. The material can absorb any expansion in itself. There is no need for expansion pieces or expansion joints. It also allows the use of commercially available fastenings and fixtures. The result: clean installations which are pleasing to the eye, even if space is tight.

The high chemical resistance of the polybutene material ensures the longest possible service life of components.

Your one-stop system solution

Pipes, fittings, connection technology or measuring and control technology, GF Piping Systems offers one-stop shopping worldwide.

Top quality

Why not profit from the quality of our products? With more than 40 years experience of production and development, stringent quality checks, highly qualified employees and a continuous improvement process, our company offers the ideal basis for superb quality standards.

Local procurement

A worldwide network of our own sales organisations and trading partners offers our customers direct access to our high-quality products and a competent and obliging service at local level.

Feel the difference in comfort

INSTAFLEX: the piping system

The INSTAFLEX system stands out with a wide range of available sizes (d16 mm to d225 mm). The same system can be used equally in a single-family detached house, in a hospital or even on board of a luxury ocean liner

The pipes with diameters ranging from d16 – d25 mm are protected with an outer protection pipe. If damaged (e.g. drilling damage), individual pipes can be easily replaced without opening up the wall.

Connection technologies for a minimum of fuss

GF Piping Systems offers the perfect connection technology for every application:

  • Electrofusion fittings for fast and safe connection on-site
  • Socket fusion as a cost-effective prefabricated alternative
  • Compression joints for connections and transitions to other materials
  • For more information, please download the full product brochure.