AC and refrigeration systems need protectors in place to boost and maintain performances. A suction line accumulator is made to prevent the liquid refrigerant from flowing back towards the compressor. Refrigerant backflows can cause damage to parts in the system, such as the crankshaft, and it washes out the oil lubricant. A suction accumulator can also be used in heat pump systems to serve the same purpose. Additional AC and refrigeration accessories include refrigeration access valves and more, to keep your refrigeration equipment in working order.