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The MIDLAND INDUSTRIES 40258 is a 12-foot red brass pipe nipple with 3/4-inch male pipe thread (MPT) connections on both ends. It is manufactured to Schedule 40 pressure ratings and conforms to ANSI B1.20.1 thread dimensional standards. This nipple is designed for use in plumbing, HVAC, and general-purpose piping systems where a long threaded brass nipple is required to span or extend a run. Rated for operating pressures between 310 and 810 psi and temperatures from 100 to 400 degrees F, it suits demanding service conditions. Licensed plumbers and pipefitters are the primary installers of this fitting.
This nipple fits into residential and commercial plumbing, hydronic heating, and gas distribution piping where red brass construction is specified for corrosion resistance or code compliance. The 12-foot length allows in-field cutting to required run lengths. A 3/4-14 thread form matches standard NPT taper pipe thread engagement for a pressure-rated seal when used with appropriate thread sealant or tape. It is commonly found in wet systems, steam systems, and fuel-gas piping within the allowable temperature and pressure range.
Designed as an OEM-style replacement or new-installation fitting for 3/4-inch NPT piping systems using Schedule 40 red brass nipples in plumbing, HVAC, and gas distribution applications.
Installation should be performed by a licensed plumber or pipefitter in accordance with applicable local codes, IPC, and IFGC requirements. Shut off system pressure and drain the line before threading or replacing any nipple. Apply an approved thread sealant compound or PTFE tape to the male threads before assembly to achieve a leak-free joint. Do not over-tighten brass fittings, as over-torque can crack or distort the fitting body.
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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