Merit Brass XB116-02 Brass End Cap 1/8 in Threaded Fbspt

Product Description

The MERIT BRASS XB116-02 is a brass pipe end cap designed to seal off the open end of a threaded pipe line. Rated Class 125, this cap uses a Female British Standard Pipe Taper (FBSPT) threaded connection to create a secure, pressure-rated termination point. It is suited for use in plumbing, HVAC piping, and general fluid distribution systems where a clean, reliable pipe closure is required. The compact 1/8 inch fitting size makes it a common choice for small-diameter branch lines and instrument ports. Installation is performed by licensed plumbers or pipefitters working on low-to-medium pressure systems.

This end cap is used in residential and light commercial piping applications where a threaded pipe terminus must be capped and sealed. Typical scenarios include capping unused branch outlets, sealing test ports, or closing off pipe ends during system modifications or phased construction. The 1/8 inch FBSPT threaded connection is standard across a wide range of brass and iron pipe fittings, making this cap a straightforward drop-in solution for pipe termination tasks in water, air, or compatible fluid systems.

Key Features

• Class 125 pressure rating suitable for low-to-medium pressure piping systems
• FBSPT threaded connection for secure, leak-resistant pipe termination
• 1/8 inch fitting size fits standard small-diameter threaded pipe ends
• Brass construction offers corrosion resistance in water and air service
• Compact form factor fits tight spaces on branch lines and instrument ports

Compatibility

Designed as an OEM-style replacement and standard fitting for 1/8 inch threaded pipe systems requiring a Class 125 FBSPT end cap termination.

Installation Notes

Installation is typically performed by a licensed plumber or pipefitter. Shut off and depressurize the pipe system fully before removing or installing any threaded fittings. Apply an appropriate thread sealant or PTFE tape to the male pipe threads before threading on the cap by hand, then tighten with a pipe wrench to achieve a proper seal. Do not overtighten brass fittings, as this can crack the fitting body.