The leading product of Transfer Oil’s GOMAX® Range is the Quadra system. The QUADRA system – comprising of thermoplastic flexible capillary hose, fittings in brass and steel and dedicated tooling – gives quick production, in a few simple steps, with superior quality connections to the pressure test points, gauges, the pressure switches including the oil return circuits and oil level equalization, for air conditioning and refrigeration units of each type and size.
The use of QUADRA flexible hose eliminates the problems caused by the effect of vibrations that is associated with copper tubing, reducing sound levels and vibration transmission significantly and at the same time eliminating the risk of rupture and leak of refrigerant.
The possibility of choosing between QUADRA hose already assembled at the factory in standard configurations, or to the customers own design, and the flexibility for the customer to be able to make on the spot their own QUADRA hose assemblies in the preferred configuration using the selection of fittings, components and tools part of the QUADRA system, allow to reduce the time required to make circuits when compared to using rigid copper tubing.
The complete system of fittings, accessories and tooling, the multi lingual instructions and the great intuitiveness of the QUADRA system make the operation of assembly the connections not only faster but, above all, more simple and consequently more secure. In contrast to the brazing or bending operations that are necessary for rigid copper tubing, installation and connection of QUADRA flexible hose does not need any particular specialization and so making the connecting operation within anyone’s ability.
The large fitting range available and the dedicated assembly tooling for the QUADRA hose allows the operator to assemble the machine, or carry out maintenance and to work quickly, flexibly and securely, reducing to a minimum or eliminating completely the need of brazing operations.
The QUADRA products are available in 3 dimensions: DN2 – DN4 – DN6.
The QUADRA DN2, in two colors orange and black, represent the most efficient and developed system for the connection of pressure gauges, pressure switches and pressure test points. Transfer Oil advice the standardization of use of the QUADRA DN2 hose, choosing the orange color for the high pressure circuits and the black color for the low pressure circuits, so identifying in an unambiguous way the two parts of the circuit. This reduces the possibilities of misconnections of the two pressure lines of the machine during production and maintenance. The extraordinary number of QUADRA DN2 fittings covers all possible types of installations, making the need of copper rigid tubes and capillaries unnecessary. QUADRA DN2 hoses and fittings can be easily assembled using the specific QUADRA hand pliers RXA003, or the all new QUADRA CRIMP RXA006.
The QUADRA DN4 flexible thermoplastic capillary hose, in two colors orange and black, are the ideal solution for equalizing and oil return lines. The QUADRA DN4 hoses have an internal diameter of 4 mm and therefore they can substitute copper rigid tubing of OD 6 mm or 1/4”. The QUADRA DN4 hose can also be used, at the choice of the user, also for connection to the pressure gauges, pressure switches and test points as with QUADRA DN2.
The QUADRA DN6 is the latest QUADRA development in the world of flexible hoses for air conditioning and refrigeration systems. The QUADRA DN6 is characterized by an internal diameter of 6 mm, and therefore they can substitute copper rigid tubing of OD 8 mm or 5/16”. The larger internal diameter reduces the pressure drop and makes the use of this hose possible on larger systems for the oil return lines and for the oil equalization systems.
The crimping fittings for the QUADRA DN6 hose are available with connections of 1/4” SAE and 3/8” SAE .