Air conditioning reducing nuts

Air conditioning reducing nuts are sealed connectors for connecting copper pipes of different diameters. They feature different thread sizes and interfaces on both ends, allowing for precise connection between small and large diameter copper pipes, preventing refrigerant leaks and ensuring smooth piping.
They are suitable for retrofitting residential and commercial air conditioning piping, connecting old and new units, and installing branch piping for multi-split units.
Made of brass, they undergo precision turning and seal testing, and feature refrigerant-resistant sealing rings, making them compatible with a variety of refrigerants.
Our service includes selection guidance. Advantages include precise connection, excellent sealing, corrosion resistance, and compatibility with a variety of pipe diameters.
air conditioning reducing nuts are a core sealing connector for connecting copper pipes of different diameters in air conditioning systems. Their core advantages are "precise diameter reduction and long-lasting sealing." Crafted from high-quality H62/H65 brass through cold heading, they are precision-turned to create a single-piece connection with different sizes. The inner surfaces are fitted with refrigerant-resistant nitrile rubber seals adapted to the corresponding pipe diameters. Once tightened, these reducers simultaneously secure the flared ends of the copper pipes. The brass material offers excellent corrosion resistance and is suitable for air conditioning operating conditions ranging from -30°C to 120°C, preventing seal failure or joint deformation caused by temperature fluctuations. They cover over eight major pipe diameter combinations and are compatible with refrigerant systems such as R22, R410A, and R32. Select models feature a stepped positioning mechanism for quick alignment during installation, preventing misconnections. Anti-slip hexagonal surfaces on the joints prevent wrench slippage, improving installation efficiency. The seals are vulcanized to form a tight fit on the inner wall, preventing loss or removal. They are compatible with the pipe thread standards of various domestic and international air conditioner brands. Applications include household air conditioning piping renovation (such as connecting old small-diameter copper pipes to the larger-diameter interfaces of new units when replacing old air conditioners in old houses), commercial central air conditioning branch piping installation (diameter-reducing connection between multi-split indoor units and main pipes), emergency connection of pipe diameter mismatches during air conditioning maintenance (such as adapting to the difference in interface pipe diameter after replacing a compressor), and transition connection of copper pipes of different specifications during engineering installation. This can not only solve installation problems caused by incompatible pipe diameters, but also ensure the refrigerant sealing and operational stability of the piping system, reducing the problem of reduced cooling efficiency or refrigerant leakage caused by improper connection.