Midland Industries 28096SLF Countersunk Square Plug

Product Description

The MIDLAND INDUSTRIES 28096SLF is a countersunk square plug designed to seal open pipe ends and ports in pressurized fluid systems. Manufactured from lead-free brass, this plug meets current potable water compliance requirements for plumbing installations. It features a 1/2-14 male NPTF thread, which provides a dry-seal tapered connection without relying solely on thread sealant. Rated to 1200 psi working pressure, it handles the demands of both water service and low-pressure gas or hydraulic applications. The countersunk head design allows the plug to sit flush or below the surface of a fitting face when space is limited. Overall length is 0.61 inches and the part weighs approximately 0.06 pounds.

This plug is suited for residential and light commercial plumbing, HVAC, and general pipe work where a reliable, flush-seating plug is required. The operating temperature range of -65 degrees F to 250 degrees F covers typical hot and cold water supply, hydronic heating loops, and refrigeration line setups. It is installed by licensed plumbers and pipefitters as well as qualified service technicians working on pipe assemblies that require capping unused ports or branch openings.

Key Features

• Lead-free brass construction meets drinking water compliance standards
• Male NPTF dry-seal taper thread for a pressure-tight connection
• 1200 psi working pressure rating for demanding service conditions
• Wide temperature range: -65 degrees F to 250 degrees F
• Countersunk head profile allows flush or recessed installation
• Compatible with brass, bronze, copper, steel, aluminum, and iron pipe fittings

Compatibility

Designed for use with brass, bronze, copper, steel, aluminum, and iron pipe and fittings accepting a 1/2-inch male NPTF thread.

Installation Notes

Installation is typically performed by a licensed plumber or pipefitter in accordance with the International Plumbing Code. Shut off and depressurize the system before removing or installing any pipe plug. NPTF threads are designed to seal on the thread form itself, though applying an appropriate thread sealant or PTFE tape is common practice to ensure a leak-free joint. Do not overtighten, as this can crack brass fittings or distort the sealing threads.