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The VALUE COLLECTION 6SQ1/2 is a 1/2 inch square head pipe plug machined from 316 stainless steel and rated to 150 psi. It uses a male NPT (MNPT) threaded connection and is designed to close off the open end of a pipe, fitting, or valve in piping systems where corrosion resistance is a priority. The square head drive allows a standard wrench or socket to apply proper torque without slippage. Plumbers, pipefitters, and mechanical contractors routinely use this style of plug when blanking ports on manifolds, test points, or unused branch connections.
This plug is suited for residential and commercial plumbing, industrial process piping, and HVAC hydronic systems where 316 stainless steel is specified for its resistance to chlorides and other corrosive media. The MNPT thread pattern conforms to standard NPT taper specifications, making it compatible with most standard pipe fittings in the same nominal size. It is commonly installed in low- to moderate-pressure applications up to 150 psi.
Designed as a standard 1/2 inch MNPT square head plug for use with NPT-threaded pipe fittings, valves, and manifolds rated at 150 psi or below in plumbing, hydronic, and industrial piping applications.
Installation should be performed by a licensed plumber or pipefitter following applicable IPC and local mechanical codes. Shut off and depressurize the system before installing or removing any pipe plug. Apply appropriate thread sealant or PTFE tape to the MNPT threads before installation. Do not over-tighten; use a torque value consistent with the fitting manufacturer guidelines for 1/2 inch stainless NPT connections.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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