A brass refrigeration access valve is also known as a refrigeration service valve, a refrigerator service valve, a refrigeration valve, access valve fittings, an ac charge valve, a refrigerant charging valve, or a freon charging valve. It is used to charge different refrigerants used in refrigeration and air conditioning. It is a high-quality tuning valve needle valve plug that is utilized to keep the refrigeration flow going.

Refrigeration Charging Valve and accessories for commercial refrigeration and air conditioning systems are used to charge or room refrigerant during air conditioning system maintenance of r22, r407c, or r410a.