Msi Products Inc A3040802 Ss Union 1/8 Inch Class 150

Product Description

The MSI PRODUCTS INC A3040802 is a Class 150 threaded pipe union manufactured from 304 stainless steel. It joins and disconnects threaded pipe sections without cutting or rethreading the line. The multi-piece body uses precision NPT threads and a central sealing seat to form a leak-resistant connection that can be broken and remade during maintenance, repairs, or equipment swaps. Cast construction delivers consistent wall integrity across the fitting. At 0.13 pounds, this 1/8 inch union is sized for light-duty lines in low-pressure service. It suits plumbers, pipefitters, and light industrial maintenance techs working on water, food processing, or general fluid systems.

This union is well suited for residential and light commercial plumbing, food and beverage processing lines, potable and non-potable water systems, and general low-pressure industrial piping. The 304 stainless steel alloy resists corrosion, rust, and oxidation, making it a practical choice in wet or chemically mild environments where carbon steel fittings would degrade. It is sold individually and installs on any standard 1/8 inch NPT-threaded pipe run.

Key Features

• 304 stainless steel construction resists corrosion, rust, and oxidation
• Class 150 pressure rating suitable for low-pressure piping applications
• 1/8 inch NPT threaded ends for connection without cutting or rethreading pipe
• Multi-piece design with central sealing seat allows full disassembly for maintenance
• Cast construction provides consistent strength and dimensional accuracy
• Lightweight at 0.13 pounds, easy to handle in tight spaces

Compatibility

Designed as an OEM-style replacement or new-installation fitting for standard 1/8 inch NPT threaded pipe systems in plumbing, food and beverage processing, water distribution, and light industrial applications.

Installation Notes

Installation is performed by licensed plumbers or qualified pipefitters following applicable IPC and local plumbing code requirements. Shut off and depressurize the line completely before disassembling or installing any union fitting. Apply thread sealant or PTFE tape to NPT threads per the sealant manufacturer and local code guidance before makeup. Do not over-tighten the union nut, as cast stainless fittings can crack if forced beyond hand-tight-plus-wrench-turns appropriate for the pipe size.