Connectors/fittings

Tube couplings are provided with pressed-on tips with an O-ring seal or pressed-on tips with a female or male thread to PN-EN10226-1:

knees, elbows and tees, pipe connectors,

threaded connectors type GZ and GW and screw joints,

approaches to receivers and fittings/fixtures,

Fittings are made of alloy steel (chromium-nickel-molybdenum) #1.4404, AISI 316L.

Sealings (O-rings)

The standard version of KAN-therm Inox and Inox System fittings is provided with EPDM rubber O-rings satisfying the PN-EN 681-1 requirements. For special applications they are delivered with Viton O-rings.

The table gives working parameters and application range for these fittings:

Material	Colour	Working parameters	Application
EPDM rubber	black	max. working pressure: 16 bar working temperature: -35°C do 135°C short-term: 150°C	systems: - central heating systems - cold and hot tap water systems - hydrant systems - for glycol solutions and compressed air (without oil) systems
FPM/Viton fluoric rubber	green	max. working pressure: 16 bar working temperature: -30°C - 180°C short-term: 230°C	systems: - solar - compressed air - furnace oil - fuel - for vegetable oils
FPM/Viton fluoric rubber	grey	max. working pressure: 9 bar working temperature: -20°C - 175°C short-term: 190°C	systems: - water steam - diameters: 15-54 mm

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

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.