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The CAPITOL MANUFACTURING 12401005 is a 1/2-inch nominal socket weld tee designed for use in high-pressure and high-temperature piping systems where welded connections are required. This fitting uses socket weld (SW) end connections, which accept pipe inserted into the recessed socket before fillet welding, producing a strong, leak-resistant joint. It is commonly installed by pipefitters, industrial plumbers, and mechanical contractors working on process piping, steam lines, or other systems that demand permanent, welded fittings over threaded or press alternatives.
This tee is suited for small-bore piping applications at the 1/2-inch nominal pipe size. Socket weld fittings at this size are standard in industrial, commercial, and institutional mechanical systems where reliability and pressure integrity are critical. The fitting is sold as a single unit and is appropriate for branch connections in run pipe at the same nominal diameter.
Designed as an OEM-style replacement or new-installation socket weld tee for 1/2-inch nominal piping systems requiring welded fittings.
Installation requires a qualified pipefitter or welder following applicable codes such as ASME B16.11 for socket weld fittings. Depressurize and drain the piping system fully before cutting into any existing line. Insert pipe to the bottom of the socket, then back off slightly before tack welding to allow for weld shrinkage. Do not skip gap clearance steps, as improper seating can lead to crevice corrosion at the socket joint.
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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