Merit Brass XB187-16 Brass Pipe Union 1 in Fbspt Class 125

Product Description

The MERIT BRASS XB187-16 is a Class 125 brass pipe union with threaded female British Standard Pipe Taper (FBSPT) connections on both ends. Unions allow piping runs to be disconnected and reconnected without cutting or rotating pipe, making them essential for service access on pumps, valves, and equipment. This fitting is rated Class 125, suited for lower-pressure liquid and gas service in plumbing and mechanical systems. At just over 1 pound, it ships as a single unit and is sized for 1-inch pipe. Licensed plumbers and pipefitters are the typical installers.

This union fits into 1-inch threaded piping systems where a break-apart connection point is needed for maintenance or equipment isolation. Common applications include residential and light commercial plumbing, hydronic heating systems, and process piping where periodic disassembly is required. The FBSPT x FBSPT threading makes it compatible with standard tapered pipe thread systems used throughout North American plumbing and mechanical work.

Key Features

• Brass construction offers corrosion resistance in wet plumbing and hydronic service
• FBSPT x FBSPT threaded ends for standard tapered pipe thread connections
• Class 125 pressure rating suitable for common residential and light commercial plumbing service
• Union design allows pipe disconnection without rotating or cutting the line
• 1-inch fitting size fits standard 1-inch threaded pipe

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 1-inch Class 125 threaded brass piping systems with FBSPT connections.

Installation Notes

Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and the IPC. Shut off water supply and relieve system pressure before disassembling or installing any union fitting. Apply thread sealant tape or paste to all male threads per manufacturer and code requirements. Do not overtighten threaded brass fittings, as brass threads can deform under excessive torque.