Infinity-logoINFINITY is the range of assembled hoses for air conditioning and refrigeration. It is the flexible thermoplastic system that fits any circuit. It is assembled with two types of combinable fittings: brazing fitting with heat dissipator and Rotalock fitting. The INFINITY system offers an absolutely innovative solution for air conditioning and refrigeration systems. With just one flexible piece you can now connect the compressor directly to the condenser or the evaporator without any intermediate solderings.

Performance and condition of use

Working pressure
Burst pressure
Working temperature
WP BP WT – °C WT – °F
maximum working pressure minimum bursting pressure allowable temperature
bar MPa psi bar MPa psi min max min max
50 5,0 724 250 25 3620 -45 +110 -49 +230

Permitted Fluids^ to top

Type of Gas Type of Oil
HFC (R134a, R404A, R407A, R407B, R407C, R410A, R507) polyol ester based
HCFC (R22) mineral oils
CO2 polyol ester based

Classification according to Directive 97/23/CE^ to top

DN Classification
15 – 21 – 28 paragraph 3 article 3
38 – 54 category I (marking )

Pressure drop and permeability^ to top

DN Pressure Drop (bar/m) Permeability at 100°C (g/year)
10 m3/h 20 m3/h 50 m3/h 100 m3/h R134a R407C
15 0,0318 0,1275     52 73
21 0,0059 0,0237     70 97
28   0,0056 0,0348   89 123
38     0,0076 0,0304 78 110
54     0,0053 0,0014 112 156

The permeability value provides an indication of the maximum Ieakage tested at constant conditions of use of the hose at 100°C / 212°F for an entire year. The real permeability value must therefore be measured considering the actual working time and temperatures to which the hose is subjected, keeping in mind that significant and detectable values are obtained with temperatures of more than 50°C /122 °F and that the permeability increases proportionally to the temperature. The permeability values obtained at 100°C / 212°F for the GOMAX hose range, of approximately 1 kg/m2/year, are much lower than those set in the standard UNI EN 1736, which foresees a maximum permeability value of 5 kg/m2/year.

Infinity hose fittings^ to top

brazing fittings with heat dissipator radiator
Material Used Surface Coupling process Filter material
drawn steel zinc plating hard brazing silver alloy with low melting point

Rotalock^ to top

Material Used Surface Coupling process Filter material
drawn steel zinc plating screw-on none

Inner tube

Thermoplastic polymer


Polyester braid of high tensile strength with high modulus.


Black polyester braid of high textile strength, abrasion resistant


Lightweight – Compact design – High flexibility – Vibration absorber

Temperature range

-45 °C to +110 °C (-49 °F to +230 °F)