Merit Brass XB187-02 Brass Pipe Union 1/8 in Class 125

Product Description

The MERIT BRASS XB187-02 is a Class 125 brass pipe union with female British standard pipe taper (FBSPT) connections on both ends. It is sized at 1/8 inch and is designed for joining and disconnecting threaded pipe sections in low-to-medium pressure plumbing and fluid distribution systems. The three-piece union design allows a technician to separate piping runs without disturbing the surrounding line. Weighing approximately 0.13 pounds, this compact fitting is suited for tight-space installations where a full pipe run cannot be easily unthreaded.

This union is appropriate for residential and light commercial plumbing, gas distribution piping, and fluid handling systems that require a reliable threaded union connection at 1/8 inch pipe size. Licensed plumbers and pipefitters install this fitting during new construction, retrofit work, and service calls where piping sections must remain serviceable for future maintenance or equipment replacement.

Key Features

• Class 125 pressure rating suitable for low-to-medium pressure service
• FBSPT x FBSPT end connections on both sides for fully threaded installation
• 1/8 inch fitting size for small-diameter pipe runs
• Brass construction offers corrosion resistance in water and compatible fluid systems
• Three-piece union design allows pipe separation without unthreading the entire line

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 1/8 inch threaded pipe systems using FBSPT connections rated at Class 125.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable IPC or local plumbing code requirements. Shut off fluid supply and depressurize the line before beginning any fitting work. Apply appropriate thread sealant or PTFE tape to all male threads before assembly. Do not overtighten threaded brass fittings, as this can crack the fitting body.