Midland Industries 44679LFUSA 2-1/2 in Npt Bronze Square Head Plug

Product Description

The MIDLAND INDUSTRIES 44679LFUSA is a solid square head plug designed to seal 2-1/2-inch male NPT threaded pipe ends in pressurized systems. Manufactured from lead-free bronze, it meets applicable standards for potable water and other regulated service applications. The plug threads in at 2-1/2-8 TPI and is rated for Pressure Class 125. Its square head drive profile allows standard wrench engagement for secure, leak-free installation. Licensed plumbers, pipefitters, and HVAC technicians install this fitting in both new construction and maintenance work across a wide range of fluid and gas systems.

This plug is rated for use with air, gas, oil, steam, and water, making it a versatile choice for residential and commercial mechanical systems. It conforms to ANSI B16.15 dimensional standards, ensuring consistent fit with standard cast bronze fittings. Typical applications include capping unused branch outlets on distribution mains, temporarily sealing lines during pressure testing, and permanently plugging dead-end runs in plumbing, hydronic heating, and compressed air piping systems.

Key Features

• Lead-free bronze construction meets requirements for potable water service
• 2-1/2-inch male NPT thread with 2-1/2-8 TPI for standard pipe system compatibility
• Pressure Class 125 rating supports air, gas, oil, steam, and water service
• Square head drive allows secure wrench engagement during installation and removal
• Conforms to ANSI B16.15 dimensional standards for cast bronze threaded fittings
• USA lead-free designation supports compliance with federal and state lead-content regulations

Compatibility

Designed as an OEM-style replacement and standard-service fitting for 2-1/2-inch NPT threaded bronze pipe systems rated at Pressure Class 125, suitable for air, gas, oil, steam, and water service per ANSI B16.15.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable local plumbing codes and ANSI B16.15 requirements. Shut off and depressurize the system completely before threading in or removing any plug. Apply appropriate thread sealant or PTFE tape to the male NPT threads before installation; do not over-tighten, as bronze fittings can crack under excessive torque. Verify pressure class and service medium compatibility before placing the fitting in service.