Separator's function is to help refrigeration and air conditioning system operate more efficiently and save energy. In any refrigeration system, refrigerant and oil are always present. Certain amounts of oil will always leave the compressor crankcase with refrigerant gas. The oil separators separate the oil from the refrigerant and returns it to the compressor crankcase before it can enter other components of the system. The less oil in circulation in a refrigeration system, the more refrigerant available for cooling. This increase the efficiency of a system by reducing running time and lowering operation cost. At following systems, the oil separators should be installed: *Multiple compressor racks for supermarkets and air conditioning *Systems with long refrigerant lines *Systems with inherent oil return problems *Ultra-low temperature systems *For use with HCFCs, HFCs and their lubricants Features: *Hermetic welded construction with steel oil return relief (1/4"or 3/8"SAE connection) *Trusty shut-off of float operated valve *Solid copper connections *Corrosion resistant paint *Minimum working pressure: 3.1Mpa.