we are refrigeration part is manufactured with high quality and precision. Brass Refrigeration Access valve also know as Refrigeration valve or copper tube extensions valve. it is used to charge various refrigeration and air conditioning refrigerant. It is a quality tuning valve needle valve plug is used to maintain the refrigeration flow. Refrigeration Charging Valve and accessories for your commercial refrigeration and air conditioning systems are used to Room or charge refrigerant during maintenance of air conditioning system of r22, r407c or r410a. As the name implies, refrigeration access valves are designed to give you an easy access point to a cooler system. This type of valve is typically attached to n capillary tube, which is used to control pressure and temperature in a refrigeration compressor unit. A flare nut produces a pressure-resistant, airtight seal on a capillary tube, while a quick coupler can splice two capillary tubes with just a snap.