Abstract: The present application relates to an apparatus of joined valves used to test and maintain refrigeration systems. More particularly, the present application provides a Multiple Valve Refrigerant Leak Protection Device having a specifically preferred embodiment including a ball valve with a soldered pipe connection, as part of the fitting with a Schrader valve, primarily used for the maintenance and transfer of refrigerant from commercial refrigeration equipment. Schrader valves are most commonly used in this application with a ball valve. A ball valve would be the preferred valve, but a wide range of valves could be used. The resulting valves can be used to test and maintain refrigeration systems, and act to prevent leakage where refrigeration fluids are often released to the atmosphere when the system is being maintained or repaired.

Abstract: The present application relates to an apparatus of joined valves used to test and maintain refrigeration systems. More particularly, the present application provides a Multiple Valve Refrigerant Leak Protection Device having a specifically preferred embodiment including a ball valve with a soldered pipe connection, as part of the fitting with a Schrader valve, primarily used for the maintenance and transfer of refrigerant from commercial refrigeration equipment. Schrader valves are most commonly used in this application with a ball valve. A ball valve would be the preferred valve, but a wide range of valves could be used. The resulting valves can be used to test and maintain refrigeration systems, and act to prevent leakage where refrigeration fluids are often released to the atmosphere when the system is being maintained or repaired.

Abstract: A valve box adapter comprising an adapter frame for insertion into a valve box which adapter frame includes an elongated narrow tapered skirt contiguous with a horizontally extending portion at its top adapted in one embodiment for the exterior bottom of said extending portion to rest upon the seat of the valve box and further having an upwardly extending portion contiguous with the horizontally extending portion forming an adapter rim having angled sides and a downwardly beveled top, said adapter adapted to fit within an existing valve box and to receive a smaller cover than was in the original valve box such cover resting upon the inner upper portion of the horizontally extending member forming a seat for the new cover.