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The NIBCO CC09400 is a Schedule 80 threaded pipe flange designed for 0.5 inch pipe with a 3.5 inch outer diameter. Molded from black polypropylene, this flange provides a corrosion-resistant connection point for threaded piping systems where chemical resistance and lightweight construction are priorities. It is used to terminate or connect a threaded pipe run to a flat surface, vessel, or mating flange. Licensed plumbers and pipefitters install this type of fitting in industrial, commercial, and process piping applications where plastic flanges are specified over metal.
This flange is suited for Schedule 80 thermoplastic piping systems handling corrosive fluids, chemical process lines, or water treatment applications. The threaded connection accepts standard NPT-threaded pipe, making installation straightforward in new construction or retrofit projects where the existing pipe is already threaded. Its polypropylene construction makes it appropriate for environments where metal corrosion is a concern.
Designed as an OEM-style replacement or new-installation fitting for Schedule 80 polypropylene threaded piping systems sized at 0.5 inch nominal pipe diameter.
Installation should be performed by a licensed plumber or pipefitter familiar with thermoplastic piping systems. Shut off flow and depressurize the line before disassembly or installation. Use appropriate thread sealant compatible with polypropylene and the service fluid. Do not over-torque threaded plastic fittings, as excess force can crack the fitting body.
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