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The VALUE COLLECTION BD--13688-1 is a Schedule 80 welded black steel pipe nipple used to extend or connect sections of black iron pipe in gas, air, and industrial fluid systems. Measuring 1-1/4 inches in diameter and 6-1/2 inches in length, it features male NPT threads on both ends for straightforward threaded assembly. The heavier wall thickness of Schedule 80 provides greater pressure tolerance compared to Schedule 40, making it appropriate for applications where higher system pressures or mechanical stress are factors. Plumbers, pipefitters, and HVAC technicians install this nipple using standard pipe wrenches and thread sealant or PTFE tape.
This nipple is suited for residential and light commercial installations involving natural gas distribution lines, propane supply piping, compressed air headers, and similar threaded black iron pipe systems. The welded construction and Schedule 80 rating make it a practical choice where a short, rigid connection is needed between fittings, valves, or equipment ports with 1-1/4 inches NPT inlets or outlets.
Designed as an OEM-style replacement or standard-stock nipple for 1-1/4 inches Schedule 80 black iron threaded pipe systems using MNPT x MNPT connections.
Installation is performed by a licensed plumber or pipefitter. Shut off and depressurize the system before removing or installing any threaded pipe component. Apply an appropriate pipe thread sealant or PTFE tape to the male threads before assembly and tighten with a pipe wrench to a fully engaged, leak-free connection. Gas piping installations must comply with applicable local codes and IFGC requirements, and all connections should be leak-tested after pressurization.
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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