Schrader provides refrigeration and air-conditioning valves specifically designed for charging refrigerant fluids. Schrader valves are compatible with all refrigerants. Threaded valves conform to SAE standards and allow easy connection to all devices. Charging valves and access valves are suitable for currents refrigerant fluids (R134a, R1234, R744) and PAG and POE oils. Each refrigeration valve consists of a body screwed into or welded onto the AC line. A high-flow or standard core is screwed into the body. The core is suitable for all connections for circuit loading. Double seals ensure proper gas loading and air-tightness. A cap with an inner seal covers the valve to provide dust protection and additional air-tightness. The cap and the core ensure low permeability. Schrader also provides technical recommendations for mountings.