Nibco CC03600 Hex Plug 3/4 in Schedule 80 Polypropylene Npt

Product Description

The NIBCO CC03600 is a Schedule 80 polypropylene hex plug designed to close off male NPT threaded pipe ends in industrial and commercial plumbing systems. Molded from black polypropylene, this 3/4-inch MPT fitting delivers chemical resistance and durability in applications where metal fittings are not suitable. The hex head allows for secure wrench tightening to achieve a proper seal. It is installed by licensed plumbers and pipefitters working on plastic piping systems that handle corrosive fluids, water treatment chemicals, or process media incompatible with metal hardware.

This hex plug is suited for Schedule 80 plastic pipe systems in commercial, industrial, and light process piping applications. It is commonly used to cap unused branch outlets, test ports, or temporary pipe terminations. The 3/4-inch male NPT thread conforms to standard MNPT dimensions, making it compatible with Schedule 80 PVC, CPVC, and polypropylene fittings that accept standard NPT threads. Installers working on chemical feed lines, irrigation manifolds, and water treatment systems regularly specify this fitting when a reliable, corrosion-resistant plug is required.

Key Features

• Schedule 80 wall thickness for elevated pressure service in plastic piping systems
• Polypropylene construction resists a broad range of acids, bases, and chemical solutions
• Hex head profile accepts standard open-end or adjustable wrenches for controlled installation torque
• Male NPT (MNPT) thread pattern for compatibility with standard NPT female-threaded fittings and pipe
• Black color for UV resistance in exposed or outdoor piping installations

Compatibility

Designed as an OEM-style replacement and standard fitting for Schedule 80 plastic pipe systems using 3/4-inch female NPT connections.

Installation Notes

Installation is performed by licensed plumbers or pipefitters. Shut off system pressure and drain the line before removing or installing any threaded fitting. Apply PTFE thread tape or a compatible thread sealant to the male threads before engagement. Do not over-tighten polypropylene fittings — hand-tight plus one to two turns with a wrench is standard practice for plastic NPT connections to avoid cracking the fitting body.