Air conditioning nuts

Air conditioning nuts are core fasteners for connecting copper pipes in air conditioners. They feature a threaded tubular structure and work seamlessly with flared copper pipes to prevent refrigerant leakage and ensure a tight seal in the piping system, making them ideal for air conditioning piping connections.
They are used to connect indoor and outdoor copper pipes in residential and commercial air conditioners and multi-split units, meeting piping requirements for new installations and repairs.
Manufactured from high-strength brass, they undergo precision thread machining and seal testing to ensure high thread accuracy and high-pressure corrosion resistance.
Our service includes selection and installation guidance. Advantages include excellent sealing, high strength, wide compatibility, and easy installation. Air conditioning nut (also known as air conditioning pipe nut) is a key sealing component for connecting copper pipes in air conditioners. Its core advantages are "high-strength sealing + full-scale compatibility." Made of high-quality brass through cold heading and precision turning, it achieves a 6H-grade thread precision. The inner wall is equipped with a refrigerant-resistant nitrile rubber sealing ring (or copper gasket). Once tightened, it fits tightly against the copper pipe flare. The brass material offers excellent corrosion resistance and is suitable for air conditioner operating conditions ranging from -30°C to 120°C, preventing seal failure due to temperature fluctuations. Specifications cover mainstream air conditioning copper pipe diameters from 6mm to 22mm and are compatible with various refrigerant systems, including R22, R410A, and R32. Some models feature a non-slip hexagonal face or knurled design, preventing slippage when tightening with a wrench, improving installation efficiency. The sealing ring is vulcanized to form a tight bond with the nut body, preventing it from falling out or getting lost. Thread standards, including national and American standards, are supported, making it compatible with a wide range of domestic and international air conditioner models. Applications include the installation of indoor and outdoor unit connection piping for household wall-mounted/cabinet air conditioners, commercial central air conditioners, multi-split units, and ducted units, as well as the replacement of connectors during the repair of old air conditioner piping. Whether it's the initial sealing during the installation of a new unit or the repair of leaks caused by aging nuts or damaged sealing rings during use, precise adaptation and reliable sealing ensure the refrigerant sealing of the air conditioning piping system, avoiding reduced cooling efficiency and refrigerant waste, and providing critical connection guarantees for stable air conditioning operation.