Value Collection 459-003NL Brass Pipe Union 1/2 in Npt

Product Description

The VALUE COLLECTION 459-003NL is a 1/2 inch brass pipe union designed for threaded pipe assemblies in plumbing and mechanical systems. It features NPT end connections and carries a Class 125 pressure rating of 125 psi, making it suitable for low-to-medium pressure water, air, and compatible fluid service lines. The red brass construction provides solid corrosion resistance in wet environments. Unions allow two pipe sections to be disconnected and reconnected without rotating either pipe, which is a common requirement during equipment service and system maintenance. Licensed plumbers and pipefitters install this fitting as a standard component in commercial and residential piping layouts.

This union fits into 1/2 inch NPT threaded pipe systems where a break-apart connection point is needed. Typical applications include water supply lines, compressed air distribution, hydronic heating loops, and light industrial fluid piping operating within Class 125 service conditions. The fitting is sold individually and is appropriate for both new installation and replacement work in maintenance and repair scenarios.

Key Features

• 1/2 inch NPT threaded end connections on both sides
• Class 125 rated to 125 psi working pressure
• Red brass construction for corrosion resistance in wet and humid environments
• Union design allows pipe disconnection without rotating pipe sections
• Compact form factor at 2.75 inches tall and 1.75 inches in diameter

Compatibility

Designed as a standard replacement or new-installation fitting for 1/2 inch NPT threaded pipe systems rated at Class 125 or lower service conditions.

Installation Notes

Installation is performed by licensed plumbers or qualified pipefitters following applicable IPC or local plumbing code requirements. Shut off and depressurize the affected pipe section before disassembly or installation. Apply an appropriate thread sealant or PTFE tape to the NPT threads before assembly. Do not overtighten, as brass threads are subject to damage from excessive torque.