Merit Brass 8048-550 Aluminum Pipe Nipple Sch 40

Product Description

The MERIT BRASS 8048-550 is a Schedule 40 aluminum pipe nipple manufactured from 6061 aluminum alloy. Measuring 3 inches in diameter and 5.5 inches in length, this nipple is threaded on both ends for direct connection to standard pipe fittings and valves. The 6061 alloy provides good corrosion resistance and structural integrity across a range of plumbing, pneumatic, and industrial piping applications. It is designed for use by licensed plumbers, pipefitters, and industrial maintenance technicians working with aluminum piping systems. The Schedule 40 wall thickness meets standard pressure-service requirements for the pipe diameter.

This pipe nipple is suited for residential, commercial, and light industrial piping installations where aluminum construction is preferred over steel or brass — particularly in corrosive environments or where weight reduction is a priority. It serves as a short extension or close-coupling fitting between threaded components in water, air, and compatible fluid distribution systems. The 3-inch diameter makes it appropriate for main distribution runs rather than small-branch or fixture supply lines.

Key Features

• 6061 aluminum alloy construction for corrosion resistance and light weight
• Schedule 40 wall thickness for standard pressure service
• Threaded on both ends for straightforward installation with standard NPT fittings
• 3-inch diameter x 5.5-inch length for close-coupling or short-extension applications
• Meets OSHA standards as specified by the manufacturer

Compatibility

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

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable IPC or IFGC provisions for the intended service. Shut off and depressurize the system completely before removing any existing fitting or nipple. Use an appropriate thread sealant rated for aluminum and compatible with the conveyed fluid. Avoid over-tightening, as aluminum threads are more susceptible to galling and damage than steel.