KAN-therm: Connectors/fittings
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Connectors are provided with pressed on tips with an O-ring or with tips pressed on and threaded with a female of male threads to PN-EN10226-1:

  • knees and tees, connectors,

  • connectors with GZ and GW threads and screw joints,

  • approaches for receivers.

Connectors are made of a low carbon steel (RSt 34-2) - material No. 1.0034 to PN-EN 10305-3 electroplated with zinc – the zinc coating thickness: 8-15 μm and additionally protected with a passivating chrome layer. The zinc coating is hot applied.


Sealings (O-rings)

Standard „Press“ fittings in the KAN-therm Steel and Inox System are provided with EPDM rubber (ethylene-propylene rubber) O-rings satisfying the PN-EN 681-1 standard. For special applications Viton O-rings are delivered extra. 

Working parameters and the scope of application of these seals are given below:

Material Colour Working parameters Application

EPDM ethylene-propylene rubber


max. working pressure: 16 bar

working temperature: -35°C - 135°C

short-term: 150°C

- central heating
- domestic hot and
cold water domestic system
- hydrant systems
- with glycol solutions
- compressed air (without oil)

FPM/Viton fluoric rubber


max. working pressure: 16 bar

working temperature: -30°C - 180°C

short-term: 230°C

- solar
- compressed air
- fuel oil
- fuel
- with vegetable oil

All the fittings of KAN-therm Inox System within 15-108 mm dimensions contain LBP function (unsealed connections alert - LBP-Leak Before Press).

Within 15-54 mm dimensions the function is realized by a specially designed O-rings. With a special grooves LBP O-rings provide optimal control over connections during the pressure test. Unsealed connections are leaky and therefore easy to locate.


Within 76,1 - 108 mm dimensions the LBP function is realized by an appropriate shape of fitting (pipe connector ovalisation).




The life of Inox system O-rings was tested by the DVGW Institute and according to these test this life should not be shorter than 50 years.

The durability of O-rings was tested at the DVGW. According to these test their life should not be under 50 years.