Value Collection B-PLG07 Black Square Plug 3/4 in Malleable Iron

Product Description

The VALUE COLLECTION B-PLG07 is a 3/4-inch black square plug used to seal threaded pipe openings in gas and liquid piping systems. Machined from malleable iron with a black finish, this Class 150 plug is rated for pressures up to 300 psi, making it appropriate for a broad range of residential and commercial piping applications. The square-head drive allows installation and removal with a standard wrench without the need for specialized tools. Licensed plumbers, pipefitters, and HVAC technicians use this type of plug to cap unused branch outlets, isolate sections of pipe, or complete system modifications.

This plug is suited for use in gas distribution lines, water supply systems, and general industrial piping where a threaded seal is required. The 3/4-inch size fits standard NPT female threaded connections and is commonly encountered in branch-line work on both new construction and retrofit projects. The malleable iron construction handles the mechanical stress of repeated installation cycles better than cast iron, making it a practical choice for service applications where the plug may need to be removed later.

Key Features

• 3/4-inch threaded connection for standard NPT female fittings
• Malleable iron construction resists mechanical stress and cracking
• Black finish for corrosion resistance in typical piping environments
• Class 150 rating with 300 psi liquid and gas pressure rating
• Square-head drive compatible with standard open-end or adjustable wrenches

Compatibility

Designed as an OEM-style replacement or general-use fitting for 3/4-inch NPT threaded pipe systems in plumbing, HVAC, and gas piping applications.

Installation Notes

Installation should be performed by a licensed plumber, pipefitter, or HVAC technician in accordance with applicable codes such as the International Plumbing Code (IPC) or International Fuel Gas Code (IFGC). Shut off gas or water supply and depressurize the system before installing or removing any threaded fitting. Apply thread sealant or PTFE tape to the male threads prior to installation to ensure a leak-free joint. Do not overtighten, as malleable iron fittings can crack under excessive torque.