Midland Industries 44635 Countersunk Plug 1 in Mpt Bronze

Product Description

The MIDLAND INDUSTRIES 44635 is a square drive countersunk plug designed to seal threaded pipe openings in bronze piping systems. It features a 1-inch male pipe thread (MPT) connection with a 1-11-1/2 thread form and is rated for 125 lb pressure service. The 0.59-inch square socket drive allows for standard socket-wrench installation or removal. Cast in bronze, this plug provides reliable corrosion resistance in water and general fluid service applications. Licensed plumbers and pipefitters install this fitting as part of routine service, repairs, or system capping tasks in both new construction and retrofit work.

This countersunk plug is suited for residential and commercial plumbing systems where a low-profile, flush-style plug is required. Its bronze construction makes it appropriate for potable water distribution lines, irrigation laterals, and general fluid handling systems. The countersunk head sits below the face of the fitting, reducing the risk of snagging in tight spaces. It meets dimensional standards including AWWA C800, ASME B16.15, ASME B1.20.1, WW-P-460C, and MSS-SP-106, making it a code-compliant choice for regulated installations.

Key Features

• 1-inch MPT connection with 1-11-1/2 thread form for standard pipe compatibility
• 125 lb pressure class rating for low-to-medium pressure service
• 0.59-inch square socket drive for wrench-tightening and removal
• Bronze construction provides corrosion resistance in water and fluid service
• Countersunk head profile minimizes protrusion in confined installations
• 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 fitting for 1-inch MPT threaded bronze pipe systems rated at 125 lb pressure class.

Installation Notes

Installation is performed by a licensed plumber or pipefitter. Shut off and depressurize the system before removing or installing any threaded plug. Apply an approved thread sealant or PTFE tape to the male threads in accordance with local plumbing codes and ASME B1.20.1 requirements. Use a properly sized square drive socket to avoid rounding the drive recess; do not use pipe wrenches directly on the plug head.