Midland Industries 44656 Square Head Plug 1-1/4 Mpt Bronze

Product Description

The MIDLAND INDUSTRIES 44656 is a cored square head plug designed for use in bronze pipe fitting assemblies where a removable, pressure-rated closure is required. It features a 1-1/4-inch male pipe thread (MPT) connection with a 1-1/4-11-1/2 thread specification and is rated for 125 lb pressure class service. Cast from bronze, it provides corrosion resistance in potable water, light hydronic, and general plumbing applications. The square head drive allows installation and removal with a standard wrench. At 1.27 inches in length with a 0.93-inch head size, this compact plug is commonly installed by licensed plumbers and pipefitters during system commissioning, testing, or capping of unused ports.

This plug is suited for residential and light commercial plumbing systems, including water distribution, irrigation, and bronze valve or manifold assemblies. Its cored design allows for future use of the port without complete plug removal when a service valve or fitting is added downstream. It meets multiple industry dimension and thread standards, making it appropriate for new construction and retrofit work where code-compliant bronze fittings are specified.

Key Features

• 1-1/4 in MPT connection with 1-1/4-11-1/2 thread form per ASME B1.20.1
• 125 lb pressure class rating for standard plumbing service
• Bronze construction for corrosion resistance in water and low-pressure fluid systems
• Square head drive for wrench installation and removal
• Cored design allows future port activation without full fitting replacement
• Meets AWWA C800, ASME B16.15, ASME B1.20.1, WW-P-460C, and MSS-SP-106 standards

Compatibility

Designed as an OEM-style replacement or new-installation bronze MPT plug for 1-1/4-inch threaded pipe systems conforming to ASME B16.15 and AWWA C800 dimensional standards.

Installation Notes

Installation is typically performed by a licensed plumber or pipefitter. Shut off and depressurize the system completely before removing or installing any threaded fitting. Apply an appropriate thread sealant or PTFE tape to the male threads per the applicable plumbing code before threading the plug into the female fitting. Do not overtighten bronze fittings, as the material is softer than ferrous pipe and susceptible to thread damage from excessive torque.