Value Collection 6SQ11/4 Square Head Pipe Plug 1-1/4 in Mnpt

Product Description

The VALUE COLLECTION 6SQ11/4 is a 1-1/4 inch square head pipe plug machined from 316 stainless steel and rated for service up to 150 psi. The square drive head allows a wrench or socket to seat firmly, making installation and removal straightforward in tight spaces. The male NPT (MNPT) threaded connection seals into female-threaded pipe fittings and valves. Its 316 stainless steel construction offers strong resistance to corrosion, making it well suited for use in wet, chemical-exposure, or marine environments. Plumbers, pipefitters, and mechanical contractors install this type of plug to cap off unused pipe openings in piping systems.

This plug is used to close off open female NPT ports on pipe assemblies, manifolds, valves, and equipment in residential and commercial plumbing, HVAC, and industrial piping applications. The 316 stainless alloy is commonly specified where standard carbon steel or 304 stainless does not provide adequate corrosion resistance, such as in saltwater, wastewater, chemical process, or coastal installations. The 1-1/4 inch fitting size is a common pipe size found across a wide range of mechanical system components.

Key Features

• 316 stainless steel construction for superior corrosion resistance in demanding environments
• 1-1/4 inch MNPT threaded connection seals into standard female NPT fittings
• 150 psi pressure rating for typical low-pressure piping system applications
• Square head drive provides positive wrench engagement for reliable installation and removal
• Single-piece, sold individually for repair and maintenance work

Compatibility

Designed as an OEM-style replacement or maintenance fitting for any standard 1-1/4 inch female NPT threaded pipe port requiring a pressure-rated closure plug.

Installation Notes

Installation is performed by licensed plumbers or qualified pipefitters in accordance with applicable plumbing codes such as the IPC. Shut off and depressurize the piping system before installing or removing any pipe plug. Apply an appropriate thread sealant or PTFE tape to the MNPT threads before tightening. Do not overtighten, as this can crack female fittings, particularly in cast iron or plastic bodies.