Value Collection 559-005NL Brass Pipe Union 1 Inch Npt

Product Description

The VALUE COLLECTION 559-005NL is a Class 125 brass pipe union designed for threaded piping systems in plumbing, HVAC, and light industrial applications. Rated at 125 psi, it accepts 1-inch NPT connections on both ends and features a red brass finish for corrosion resistance in wet service environments. The union allows technicians to disconnect and reconnect sections of pipe without disturbing the rest of the run, making it a standard component in service loops, equipment connections, and branch takeoffs. Licensed plumbers and pipefitters are the typical installers for this fitting in both residential and commercial settings.

This union is suited for use in water supply lines, hydronic heating piping, compressed air distribution at pressures within its 125 psi rating, and general-purpose fluid handling where NPT-threaded connections are specified. Its compact dimensions make it practical in tight mechanical spaces and panel rooms. The red brass construction performs well in potable water systems and mildly corrosive service conditions where standard yellow brass or iron fittings are not appropriate.

Key Features

• 1-inch NPT end connections on both sides for standard threaded pipe systems
• 125 psi pressure rating suitable for water, air, and light fluid service
• Red brass construction provides corrosion resistance in wet and potable water applications
• Class 125 rating meets common plumbing and mechanical system specifications
• Union design allows pipe disconnection without cutting or disturbing adjacent fittings

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 1-inch NPT threaded piping systems rated at Class 125 service conditions.

Installation Notes

Installation is performed by licensed plumbers or qualified pipefitters in accordance with applicable plumbing codes such as the IPC or local jurisdiction requirements. Shut off and depressurize the system completely before removing or installing any union fitting. Apply an approved thread sealant or PTFE tape to the male NPT threads before assembly. Do not over-tighten; use a proper pipe wrench and backup wrench to avoid stressing adjacent fittings or pipe runs.