Ndl Industries PLUG2 Black Iron Plug 2 Inch Mpt

Product Description

The NDL INDUSTRIES PLUG2 is a black malleable iron threaded plug designed to seal a 2-inch female-threaded opening in threaded piping systems. It uses a male pipe thread (MPT) configuration to close off pipe ends or unused ports in systems where black iron construction is required. This fitting is a standard choice in gas distribution, compressed air, and hydronic heating installations. Licensed plumbers, pipefitters, and HVAC technicians install this type of plug wherever a secure, pressure-rated termination point is needed in a black iron piping assembly.

This plug is suited for residential and light commercial piping systems that specify black iron fittings. Typical applications include capping unused tee or cross outlets in natural gas and propane distribution lines, sealing ports on air headers or compressed air manifolds, and closing supply or return connections in hot-water hydronic systems. Verify nominal pipe size, thread form, and applicable system pressure ratings and code requirements before installation.

Key Features

• Black malleable iron construction meets typical specifications for gas, air, and hydronic piping systems
• 2-inch nominal size with male pipe thread (MPT) for direct engagement into female-threaded fittings and pipe ends
• Threaded connection provides a secure, removable seal without welding or special tooling
• Standard MPT thread form supports compatibility with common black iron pipe and fitting stock

Compatibility

Designed as an OEM-style replacement or new-installation fitting for threaded black iron piping systems requiring a 2-inch male pipe thread plug in gas, air, or hydronic applications.

Installation Notes

Installation of threaded black iron plugs should be performed by a licensed plumber, pipefitter, or HVAC technician in accordance with applicable codes such as the IFGC or IPC. Depressurize and isolate the system section before installing or removing any threaded plug. Apply an appropriate thread sealant or PTFE tape rated for the intended service medium. Confirm nominal pipe size and thread engagement before pressurizing the system.

Technical Specifications

• Material: Black Malleable Iron
• Connection Type: Male Pipe Thread (MPT)
• Nominal Size: 2 inches

Standard Information

• Brand: NDL INDUSTRIES
• Manufacturer Part Number: PLUG2