Merit Brass 8048-400 Aluminum Pipe Nipple 3x4 in Sch 40

Product Description

The MERIT BRASS 8048-400 is a Schedule 40 aluminum pipe nipple machined from 6061 aluminum alloy and threaded on both ends. It measures 3 inches in nominal pipe size and 4 inches in overall length, providing a compact, rigid connection for low-pressure fluid, air, and gas piping systems. The 6061 alloy delivers solid corrosion resistance and mechanical strength appropriate for both industrial and commercial applications. OSHA-compliant construction makes it suitable for regulated work sites. Licensed plumbers, pipefitters, and mechanical contractors typically specify this nipple when aluminum is required to reduce weight or limit galvanic issues in mixed-metal piping assemblies.

This pipe nipple is used in residential and commercial plumbing, compressed air lines, pneumatic systems, and light industrial fluid distribution. Its Schedule 40 wall thickness handles standard working pressures in aluminum piping systems. The 3-inch nominal diameter and 4-inch length make it a close nipple option for tight-run installations where a longer nipple or union fitting would not fit. It is well-suited for new construction and retrofit work where aluminum is preferred over steel or brass.

Key Features

• 6061 aluminum alloy construction for corrosion resistance and reduced weight
• Threaded on both ends for direct connection to couplings, valves, or fittings
• Schedule 40 wall thickness for standard working pressure ratings
• OSHA-compliant design suitable for regulated commercial and industrial job sites
• 3-inch nominal pipe size by 4-inch length for compact piping runs

Compatibility

Designed as an OEM-style replacement or new-installation nipple for Schedule 40 aluminum piping systems using 3-inch nominal pipe size threaded connections.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable IPC or IFGC codes for the intended service. Shut off and depressurize the line completely before removing or installing any threaded nipple. Apply an appropriate thread sealant or PTFE tape rated for the service medium. Do not over-tighten aluminum-threaded fittings, as the alloy is softer than steel and susceptible to thread damage under excessive torque.