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The MERIT BRASS 8040-400 is a Schedule 40 aluminum pipe nipple machined from 6061 aluminum alloy. It measures 2.5 inches in nominal pipe diameter and 4 inches in length, with threads on both ends for standard pipe assembly. This nipple serves as a short connector between pipe fittings, valves, or equipment ports in low-pressure fluid and gas piping systems. The 6061 alloy offers solid corrosion resistance and is well suited for applications where steel would add unnecessary weight or react with the conveyed media. Plumbers, pipefitters, and industrial maintenance technicians are the primary installers.
This nipple is used in residential, commercial, and light industrial piping applications where aluminum construction is specified or preferred. Typical installations include compressed air lines, irrigation headers, chemical transfer systems, and HVAC-related piping where corrosion resistance and weight savings matter. The Schedule 40 wall thickness makes it compatible with standard threaded pipe fittings and valves of the same nominal size. It is sold individually and is appropriate for both new construction and replacement service work.
Designed as an OEM-style replacement or new-installation nipple for Schedule 40 threaded aluminum piping systems in the 2.5-inch nominal pipe size class.
This fitting is installed by licensed plumbers or qualified pipefitters in accordance with applicable plumbing codes such as the IPC or local equivalents. Depressurize and isolate the piping section before removing or installing any threaded nipple. Apply an appropriate thread sealant or PTFE tape rated for the conveyed media before making up the joint. Do not over-tighten aluminum threaded fittings, as the alloy is softer than steel and susceptible to thread damage under excessive torque.
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