Duff Norton 730303C Rotary Union 1 Inch NPT Assembly

Duff Norton 730303C Rotary Union is a 1-inch NPT threaded fluid-swivel assembly that transfers fluids between a stationary supply and a rotating component. The 1" NPT interface denotes the port size and accepts standard pipe fittings used in hydraulic, coolant, and lubrication circuits. As a Duff Norton rotary union, it provides a sealed, rotating joint that maintains fluid continuity while the equipment shaft turns, allowing continuous fluid delivery without tangled hoses. The part number 730303C uniquely identifies this model for replacement or retrofit in compatible systems. This assembly is suited for machines and tooling where a rotating joint must carry lubricants, coolants, or hydraulic fluids to a moving part without interrupting operation. It integrates with standard 1-inch NPT connections common across industrial equipment. In industrial settings, such a rotary union enables a rotating shaft or tool to receive lubrication or coolant without hoses twisting as the part spins, simplifying plumbing and reducing maintenance in hydraulic and lubrication circuits.