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The NIBCO PRESADCMIP4 is a wrot copper press-by-male-iron-pipe (P x MIP) adapter designed for joining copper press systems to male-threaded iron pipe connections. At 4 inches, this fitting is built for larger-diameter plumbing installations where a reliable, solder-free transition between press and threaded pipe is required. Wrot copper construction delivers consistent wall thickness and superior corrosion resistance compared to cast fittings. Licensed plumbers and pipefitters working on commercial or industrial plumbing systems will find this fitting suited for high-integrity connections in demanding environments.
This adapter is used in plumbing systems where a copper press main line must transition to a male NPT-threaded connection — common in mechanical rooms, equipment connections, and larger commercial plumbing installations. The P x MIP configuration allows the press end to be secured with a standard press tool while the male threaded end connects directly to a female-threaded valve, fitting, or equipment port. It is appropriate for both new construction and retrofit applications involving 4-inch press copper piping.
Designed as an OEM-style press fitting for use in 4-inch copper press plumbing systems requiring a transition to male NPT-threaded connections.
Installation should be performed by a licensed plumber in accordance with applicable IPC or local plumbing codes. Shut off and depressurize the water supply before cutting into any existing line. The press end requires an approved press tool with the correct jaw size for 4-inch copper press fittings — verify jaw compatibility with the fitting series before pressing. The threaded end should be made up with appropriate thread sealant or tape rated for the service fluid and pressure.
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