Midland Industries 44640LF Countersunk Plug 3in Mpt Bronze

Product Description

The MIDLAND INDUSTRIES 44640LF is a square drive countersunk plug designed for sealing threaded pipe openings in plumbing and water service systems. Machined from lead-free bronze, this plug features a 3-inch male pipe thread (MPT) connection and is rated for a 125 lb pressure class. The countersunk head profile allows the plug to sit flush or below the fitting face when fully installed. At 1.13 inches in length with a 1.38-inch socket size, the 44640LF is a compact, heavy-duty fitting installed by licensed plumbers and water system technicians on potable water and municipal service applications.

This plug is suited for residential and commercial plumbing systems, water service lines, and municipal distribution networks where lead-free materials are required by code. The 3-inch MPT thread size makes it appropriate for larger-diameter pipe terminations, cleanout points, and pressure-test ports. Its compliance with multiple dimension and material standards makes it a common specification item on engineered plumbing projects and municipal repair work.

Key Features

• Lead-free bronze construction meets potable water material requirements
• 3-inch MPT connection for large-diameter pipe terminations
• 125 lb pressure class rating for standard service pressure ranges
• Countersunk head profile allows flush or recessed installation
• 1.38-inch socket size for square drive installation tool
• Compliant with AWWA C800, ASME B16.15, ASME B1.20.1, WW-P-460C, and MSS-SP-106 standards

Compatibility

Designed as an OEM-style replacement and standard-service fitting for 3-inch MPT threaded pipe systems in lead-free bronze plumbing and water service applications.

Installation Notes

Installation of this plug should be performed by a licensed plumber in accordance with applicable local plumbing codes and AWWA standards. Shut off and depressurize the line completely before removing or installing any threaded plug. Use a properly sized square drive tool matching the 1.38-inch socket to avoid rounding the drive recess. Apply an approved thread sealant compatible with potable water service per local code requirements.