• EDIS
  • oilstar hose
  • Composite hose assemblies for road tanktrucks
  • CAMLOCK couplings
  • Tygon S3™ B-44-3
  • COMPENSATORS
  • CAMLOCK couplings
  • MASTERMILK/SD MILK HOSE

AIR CONDITIONING HOSES AND FITTINGS

Air conditioning flexible rubber hoses widely used for vehicles (cars, agriculture machines, trains, tramways) and industrial refrigeration systems. Designed for Freon (e.g. R134a) or mixed with compressor oil (e.g. PAG) are subjected to constant pressure and temperature changes during cirulation in the system. Due to this fact air conditioning hose requirements are very high and concern especially leak tightness for very penetrating Freon, moisture permeation, chemical, pressure and temperature resistance.
For air conditioning see also: steel hoses.

Air conditioning hose

Air conditioning hose

Air conditioning hoses designed for automotive are made of different types of high quality rubber and have a BARRIER construction (thin layer of polyamide in internal layer that minimise Freon permeation). Hoses according to SAE J2064 standards. Typical for automotive are DN 8, 10, 13 and 16 mm with textile reinforcement in standard (thick wall) or LW (thinned wall) version. Hoses in DN 22, 28 or 35 mm with steel braid are used in bigger systems (e.g. in buses and coaches). Working pressure to 35 bar, working temperature from -40°C to +135°C. For industrial refrigeration systems special types of thermoplastic hoses (with polyamide internal layer) are used.

AIR CONDITIONING FITTINGS

AIR CONDITIONING FITTINGS

For rubber air conditioning hoses designed for automotive industry special types of fittings (made of aluminium or steel) are available:

  • reusable,
  • crimped,
  • assembled with the use of special clips (fast assembly system).

Connection part of a fitting can be very unique and matching only particular model of a car. Very common connection is a pipe fitting with o-ring sealing and imperial UNF female threaded nut.

CRIMPING MACHINES FOR AIR CONDITIONING HOSES

CRIMPING MACHINES FOR AIR CONDITIONING HOSES

For rubber air conditioning hoses designed for automotive below mentioned methods of fittings assembly are available:

  • Reusable fittings – Assembly of the fitting is performed by screwing the fitting together with a ferrule that was fitted on the hose. Not very popular
  • Crimped fittings – Crimp fittings for air conditioning systems have an integrated ferrule. The crimping process is performed by crimping machines designed for air-conditioning or by standard Finn Power crimping machines, with the use of special die sets.
  • BURGACLIP fast assembly system– Special design of a fitting hose tail and a clip enables a fast and easy assembly using only assembly pliers.