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NiroTherm® (Serie 91000) | Stainless steel


The innovative SANHA installation system NiroTherm® combines high-quality NiroTherm® press fittings with a black sealing ring made from EPDM (=ethylene propylene diem rubber) and NiroTherm® stainless steel system tubes.


The fittings and pipes is produced from the material 1.4301 (AISI 304). Due to the well-known corrosion resistance of stainless steel, NiroTherm® offers installers therefore a real alternative compared to conventional steels when it comes to closed systems in humid atmospheres such as screed. Since it needs considerably less isolation against humidity*, the installation is faster and labour costs accordingly lower.


In addition to the system description, NiroTherm® system press fittings are marked on the outside with a red dot.


* This does not affect thermal insulation necessitated by national energy efficiency laws. 

Operating conditions for the NiroTherm® press system

Outer pipe diameter Operating pressure
Water and aqueous solutions
d ≤ 168 mm 16 bar
Technical gases (non toxic, non flammable)
d ≤ 168 mm 16 bar
Operating temperature
NiroTherm® press fittings
with EPDM sealing ring
-30 °C - +120 °C
Thread: Pipe thread: R/Rp thread according to EN 10226, 
fastening thread: G thread according to ISO 228


combipress =

+ Tool compatibility: pressable with press jaws and slings with original SA, V and M contour up to and including 54 mm

+ Leak path feature (certified forced leakage before pressing with EPDM and HNBR sealing rings) in combination with

+ Push & Stay function for safe, reliable installation in every position

First class material, lower labour cost

NiroTherm® is especially useful where carbon steel systems cannot be installed or need to be heavily protected against corrosion. NiroTherm® needs less protection compared to carbon steel as the material itself offers an additional layer of safety.

Fast installation, no risk of fire

The connection with stainless steel pipes by cold pressing enables a fast, time-saving installation and eliminates the risk of fire during the process. NiroTherm® installation systems are therefore ideally suited for renovation work.

High corrosion resistance

The premium stainless steel type 1.4301 (304) and the exceptionally smooth, passivated surface of pipes and fittings lead to an excellent corrosion resistance.

Exceptional flexibility

  • All dimensions from 15 to 108 mm 
  • Reliable, permanent connection with NiroTherm® and NiroSan® stainless steel system pipes:

    • NiroTherm® (1.4301/304), optimized wall thickness, TIG welded, annealed for improved corrosion resistance

  • Thread according to EN 10226 and ISO7/1 Type R and Rp
  • Can also be combined with SANHA®-Therm carbon steel system pipes



Areas of application

  • Heating
  • Cooling water
  • Technical gases
  • Compressed air (oil ≤ 25 mg/m³)
  • Rainwater
  • Inert gases
  • Cooling water pipes

More applications on demand.

Germany Alter Güterbahnhof, Freiburg NiroSan Gas (series 17000), NiroSan® (series 9000), NiroTherm® (Serie 91000), SANHA®-Press (series 6000), PURAPRESS® (series 8000), SANHA®-Therm (series 24000), 3fit®-Press (series 25000 Pb-free), SANHA heating circuit distributors, SANHA wall heating module
Germany Arborea Marina Resort, Neustadt NiroTherm® (Serie 91000), SANHA®-Press (series 6000), SANHA®-Therm (series 24000), 3fit®-Press (series 25000 Pb-free)
Germany Bettenhaus, Köln NiroTherm® (Serie 91000), SANHA®-Therm (series 24000)
Germany Feuerwache Frechen NiroSan® (series 9000), SANHA®-Therm (series 24000), SANHA®-Press (series 6000), NiroTherm® (Serie 91000), PURAPRESS® (series 8000)
Germany Freiraum Living, Freiburg NiroTherm® (Serie 91000), SANHA®-Therm (series 24000), SANHA heater connections, SANHA wall heating module
Germany Hampton by Hilton, Freiburg SANHA heating circuit distributors, NiroTherm® (Serie 91000), SANHA®-Therm (series 24000), PURAFIT® (series 3000)
Germany Holiday Inn, Köln NiroTherm® (Serie 91000), SANHA®-Therm (series 24000)
Germany Hyatt Place, Frankfurt NiroSan® (series 9000), SANHA®-Therm (series 24000), NiroTherm® (Serie 91000)
Germany Johannes Gutenberg Universität, Mainz NiroTherm® (Serie 91000), PURAPRESS® (series 8000), NiroSan® (series 9000)
Germany Neubau BP Lingen NiroSan® (series 9000), NiroTherm® (Serie 91000), SANHA®-Therm (series 24000)
Germany Raab Karcher, Essen NiroTherm® (Serie 91000), PURAPRESS® (series 8000)
Germany Real Markt, Balingen NiroSan® (series 9000), NiroTherm® (Serie 91000)
Germany Wyndham Super 8, Freiburg NiroTherm® (Serie 91000), SANHA®-Therm (series 24000), SANHA heating circuit distributors