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The CERROBRASS 103A-B is a female-threaded pipe coupling designed for industrial fluid and gas piping systems. It features a 1/4 inch FNPTF (Female National Pipe Taper Fuel) thread on both ends, providing a pressure-tight mechanical connection rated to 1,200 psi maximum working pressure. This coupling is used to join two sections of threaded pipe in a straight run. Plumbers, pipefitters, and industrial maintenance technicians install this fitting in compressed air, fuel, hydraulic, and similar high-pressure piping applications where a leak-free threaded joint is required.
This coupling is suited for industrial piping installations where NPTF thread standards are specified. The FNPTF thread form achieves a seal through metal-to-metal thread contact, reducing reliance on additional sealant tape or compound, though installation practices and local codes may still require thread sealant. Typical applications include compressed air distribution lines, fuel supply piping, hydraulic systems, and other pressurized service lines in commercial and industrial facilities.
Designed as an OEM-style replacement or new-installation fitting for industrial piping systems requiring 1/4 inch FNPTF threaded couplings rated to 1,200 psi.
Installation should be performed by a licensed plumber or qualified pipefitter in accordance with applicable codes such as the IPC or relevant industrial piping standards. Depressurize and isolate the piping system completely before removing or installing any threaded fittings. Use appropriate thread sealant or PTFE tape as required by the system medium and local code, even with NPTF threads. Do not over-torque the fitting, as this can damage the thread engagement and compromise the pressure seal.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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