Msi Products Inc A3040502 Pipe Cap 1/8 Inch Class 150

Product Description

The MSI PRODUCTS INC A3040502 is a Class 150 threaded pipe cap machined from 304 stainless steel. It seals the end of a female NPT-threaded pipe run, providing a leak-resistant closure on unused openings or lines staged for future expansion. Cast construction delivers consistent wall thickness and dimensional accuracy across the fitting. At 0.03 pounds, the cap is lightweight but built to handle the corrosion demands of wet, chemical, and outdoor environments. 304 stainless steel resists rust and oxidation, making it a dependable choice where carbon steel would degrade over time.

This pipe cap suits residential and light commercial piping installations where a low-pressure, corrosion-resistant termination is required. Common applications include water supply lines, compressed air systems, food processing piping, and light chemical handling. It is also used in general industrial plumbing where an NPT-threaded dead-end closure is needed on a 1/8 inch line. Licensed plumbers and pipefitters typically install this fitting during new construction, system modifications, or when capping off a branch for future use.

Key Features

• 304 stainless steel construction resists corrosion, rust, and oxidation in wet and outdoor environments
• Female NPT threads provide a secure, leak-resistant seal on threaded pipe ends
• Class 150 pressure rating suitable for low-pressure water, air, and light chemical service
• Cast construction ensures consistent wall thickness and dimensional accuracy
• Lightweight at 0.03 pounds for easy handling during installation

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 1/8 inch female NPT-threaded pipe systems rated at Class 150 in water, air, food processing, and light chemical applications.

Installation Notes

Installation is performed by a licensed plumber or pipefitter following applicable IPC and IFGC guidelines for threaded pipe systems. Shut off and depressurize the line completely before threading on the cap. Use an appropriate thread sealant or PTFE tape on the NPT threads to ensure a leak-free seal. Do not overtighten, as cast stainless fittings can crack under excessive torque.