Picture of OSTENDORF Drainage System

OSTENDORF Drainage System

Top German quality - excellent chemical resistance and high mechanical strength

Ostendorf has been one of the leading drainage system manufacturers for over 40 years. All its products, made in Germany, are fully certified, distributed internationally and stand out for their quality and high chemical resistance as well as mechanical strength.

Ostendorf offers a wide range of pipes, tees, elbows, couplings, plugs, HTM end caps, increasers, connection and flow control fittings and rubber rings, all necessary for any professional and a complete installation.

Ostendorf HT Safe: PP Waste Water Pipe System

Ostendorf HT Safe are PP waste water pipes, which are very easy to install thanks to the push-fit connection. They have a built-in sealing rubber, featuring excellent heat resistance. Offering a safe and reliable application, the system absorbs building contractions-expansions, it is completely resistant to the effects of sewage and gases or vapors generated inside the drainage system. Suitable for domestic wastewater disposal as well as for ventilation networks. They offer excellent mechanical strength and high corrosion resistance. The colour is cadmium-free. They are chemically resistant to urban and industrial wastewater and suitable for transporting liquids with a pH from 2 to 12. They have very good sound insulation behaviour and reduce the emitted sound by 21 db.



  • Extremely easy to install without the use of special tools thanks to the push-fit connection
  • High-tech patented sealing ring, made of solid SBR rubber with triple lip seal (3 Lip Seal), for even more effective application, sealing and durability in the long run, even under thermal stress or mechanical pressure. The ring remains completely fixed during pipe application.
  • Highly resistant to corrosion from chemicals or microorganisms
  • High chemical resistance to urban and industrial wastewater
  • Excellent fire performance
  • Possibility of connecting solder fittings with rubber, and change from PVC fitting to PP by Ostendorf
  • Certificates complying with all European standards
  • Scaling system in cm
  • Intense - durable colour RAL 7043
  • 100% recyclable
  • Warranty: 25 years

Technical Information

Resistant to temperatures up to +100°C, 110°C at times

Appropriate for carrying waste water within a range of PH2 (acidic) to PH12 (basic).

Excellent fire performance as per DIN 4102 B1

Sound insulation test according to Bismat 1000 (P-BA 222/2016) Result: 21 dB at 4 litres supply

Ostendorf KG PVC: PVC Drainage Pipe System with rubber SN4

Ostendorf KG PVC Drainage System complies with all requirements regarding water resistance, service life and easy handling, ensuring the protection of the environment from a possible pollution through urban wastewater

Smooth, homogeneous interior and extremely durable wall offering resistance to abrasion and pressure by soil weight and fluid flow loads.

Available in a wide range of dimensions, while their light weight offers easy handling even for 5m pipes, thus facilitating extremely the professional installer.

PVC drainage pipe system is available in SN8 and SN10 kΝ/m2 as per EN 1401, on request.

Full range of dimensions in diameter from DN 110 to PN 500 and from 0.5 to 5 meter in length.



  • Ideal for undergroung drainage systems
  • Excellent stability and endurance due to unique manufacturing technology
  • Resistance to static strain and tension, as well as to chemicals
  • Life service up to 100 years
  • Excellent plumbing features
  • Easy, fast, low cost installation
  • Certified according to ISO 9001, ISO 140001 & ISO 50001
  • Resistant orange colour RAL 8023
  • Warranty: 25 years

Technical Information

High resistance to chemicals and waste water within a range of PH2 (acidic) to PH12 (basic).

Ostendorf Skolan Safe: PP Soundproof Waste Water Pipe System

The continuous development of internal drainage systems, led to Skolan Safe - a complete solution for any demanding construction. With Skolan Safe, Ostendorf sets new standards in the field of building soundproof drainage pipes!

Both pipes and fittings of the Ostendorf Skolan Safe series are 100% compatible with our Ostendorf HT Safe range.



  • Solid rubber with a Triple lip seal (3 Lip Seal) for complete sealing even in the most adverse conditions
  • Smooth inner surface improving hydraulic flow and reducing noise emissions due to less friction
  • Pipes are calibrated in cm to facilitate cutting and installation
  • Certification Z-42.1-217
  • Pipes and fittings are resistant to waste with pH 2 - pH12
  • Full range in diameters from DN 50 to DN 200
  • Light grey colour RAL 7035
  • 100% recyclable
  • Warranty: 25 years

Technical Information

Temperature Resistance up to +90°C

Reduced noise emissions 17dB (A) according to DIN EN 14366, Bismat 1000 (P-BA 221/2016)

Manufactured according to the requirement standards as per DIN EN 12056, DIN 1986-100, DIN 4109, VDI 4100. Production certified to ISO 9001: 2015


Wastewater and rainwater drainage systems Wastewater and rainwater drainage systems
Wastewater systems with low or high temperatures Wastewater systems with low or high temperatures
Wasterwater network ventilation system Wasterwater network ventilation system
Rainwater drainage systems inside buildings Rainwater drainage systems inside buildings


For more information regarding Pricelists, Technical Data, Manuals & Warranties, please click here.