Midland Industries 44660LF 3 in Mpt Bronze Square Head Plug

Product Description

The MIDLAND INDUSTRIES 44660LF is a cored square head plug designed for use in plumbing and waterworks piping systems. Built from lead-free bronze, it meets current NSF and regulatory requirements for potable water applications. The plug features a 3-inch male pipe thread (MPT) connection and is rated to a 125 lb pressure class. At 1.93 inches in length with a 1.68-inch head size, this fitting is sized for standard service-line and distribution applications. The square head drive allows installation with a socket or wrench, providing reliable torque engagement during makeup. Licensed plumbers and pipefitters are the primary installers of this fitting.

This plug is suited for residential and light commercial water service applications where a cored square head plug is needed to terminate a 3-inch female-threaded port. The cored design allows the plug to be used as a corporation stop blank-off or temporary closure in pressure-rated bronze piping assemblies. It conforms to AWWA C800, ASME B16.15, ASME B1.20.1, WW-P-460C, and MSS-SP-106 dimensional and material standards, making it appropriate for municipal water service and commercial plumbing rough-in work.

Key Features

• Lead-free bronze construction meets current potable water compliance requirements
• 3-inch MPT connection for direct thread engagement into female-threaded fittings or valves
• 125 lb pressure class rating suitable for standard water service applications
• Square head drive provides positive wrench engagement during installation
• Conforms to AWWA C800, ASME B16.15, ASME B1.20.1, WW-P-460C, and MSS-SP-106 standards
• 1.68-inch head size and 1.93-inch length for compact installation in tight spaces

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 3-inch female NPT bronze fittings and valves in potable water distribution and plumbing systems conforming to AWWA and ASME standards.

Installation Notes

Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and AWWA guidelines. Shut off and depressurize the water supply before removing or installing any threaded plug. Apply an appropriate thread sealant or PTFE tape to the male threads before makeup. Do not over-tighten; use the square head drive with a properly sized socket or wrench to avoid damaging the bronze threads.