Nibco CN00370 Pipe Coupling 1 in Poly Sch 80 Fpt

Product Description

The NIBCO CN00370 is a 1-inch Schedule 80 polypropylene pipe coupling with female pipe thread (FPT) connections on both ends. Built from virgin polypropylene, this coupling is suited for chemical-handling, industrial, and plumbing piping systems where corrosion resistance and elevated temperature performance are required. The Schedule 80 wall thickness provides higher pressure ratings than Schedule 40, making it appropriate for demanding service conditions. A licensed plumber or pipefitter typically installs this fitting as part of a thermoplastic piping system. The maximum working temperature is 180 degrees F, keeping it well-suited for hot-water and process lines within that range.

This coupling is used in residential and commercial plumbing, irrigation, chemical distribution, and industrial process piping where polypropylene thermoplastic construction is specified. FPT x FPT end connections accept standard male-threaded plastic or compatible metal pipe. It is packaged and sold individually, making it practical for both single-repair and bulk-replacement scenarios in service and new-construction work.

Key Features

• Schedule 80 polypropylene construction for higher pressure ratings versus Schedule 40
• FPT x FPT end connections for straightforward threaded assembly
• Maximum working temperature of 180 degrees F
• Meets ASTM D4101 standard for polypropylene plastic pipe fittings
• Corrosion-resistant material suitable for chemical and water service

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 1-inch Schedule 80 polypropylene thermoplastic piping systems with standard female pipe thread connections.

Installation Notes

Installation should be performed by a licensed plumber or qualified pipefitter in accordance with applicable IPC or local plumbing codes. Shut off the water supply and depressurize the line before servicing. Use thread sealant tape or compound rated for plastic fittings, and tighten by hand first before using a strap wrench — do not use metal pipe wrenches directly on polypropylene fittings, as over-torquing will crack the fitting. Inspect threads for damage before assembly.