Merit Brass SW3487D-02 Pipe Union 1/8 Inch 304 Ss

Product Description

The MERIT BRASS SW3487D-02 is a 1/8 inch socket weld pipe union manufactured from 304 stainless steel. This union fitting connects two pipe sections and allows for future disconnection without cutting the line, making it a practical choice wherever periodic service access is needed. It carries a 3,000 psi pressure rating, making it suitable for demanding fluid and gas distribution systems. Plumbers, pipefitters, and mechanical contractors install this type of fitting in process piping, instrumentation lines, and high-pressure service runs where corrosion resistance and joint integrity are required.

The SW3487D-02 is suited for use in residential, commercial, and light industrial piping systems that require a socket weld connection at the 1/8 inch pipe size. Its 304 stainless steel construction provides reliable resistance to oxidation and corrosion in wet or chemically active environments. This fitting is appropriate for steam, water, oil, and gas service lines where a rated, reusable union joint is specified by the design or code requirement.

Key Features

• 304 stainless steel construction for corrosion resistance in wet and chemical service environments
• 3,000 psi pressure rating suitable for high-pressure piping systems
• Socket weld end connections on both sides for secure, full-penetration weld joints
• 1/8 inch fitting size for small-bore instrumentation and process piping applications
• Union design allows pipe disassembly without cutting, supporting maintenance and service access

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 1/8 inch socket weld piping systems requiring a 3,000 psi rated union in 304 stainless steel.

Installation Notes

Installation of socket weld fittings must be performed by a qualified pipefitter or plumber in accordance with applicable codes such as ASME B31.1, B31.3, or local mechanical codes. Shut down and depressurize the piping system completely before cutting into any line or disturbing existing joints. Socket weld connections require proper fit-up, with the pipe inserted to the bottom of the socket and then backed out slightly before welding to allow for weld metal expansion. Do not pressure-test the assembly until all welds have been inspected and cooled.