Merit Brass XB112-2012 Brass Reducing Coupling 1-1/4x3/4 Fbspt

Product Description

The MERIT BRASS XB112-2012 is a brass pipe reducing coupling designed to connect two different pipe sizes in threaded plumbing and piping systems. It accepts a 1-1/4 inch female pipe thread on one end and a 3/4 inch female pipe thread on the other, allowing a smooth transition between pipe diameters without additional adapters. Rated Class 125, this fitting is suited for moderate-pressure water, air, and compatible fluid service applications. Licensed plumbers and pipefitters install this type of coupling during new construction, system modifications, or repair work where a pipe size reduction is required in a threaded line.

This reducing coupling is commonly used in residential and light commercial plumbing, HVAC hydronic systems, compressed air distribution, and general industrial piping where a reduction from 1-1/4 inch to 3/4 inch nominal pipe size is needed. The female-by-female threaded configuration allows it to join two male-threaded pipe ends directly, making it a straightforward inline fitting for tight spaces or retrofit scenarios where re-piping a full section is not practical.

Key Features

• Reduces from 1-1/4 inch to 3/4 inch nominal pipe size in a single fitting
• Female BSP threaded connections on both ends for direct engagement with male-threaded pipe
• Class 125 pressure rating suitable for water, air, and compatible fluid service
• Brass construction provides corrosion resistance and durability in wet piping environments
• Compact design fits inline without additional adapters or unions

Compatibility

Designed as an OEM-style replacement or new-installation fitting for threaded brass piping systems requiring a 1-1/4 inch to 3/4 inch FBSPT reducing connection rated at Class 125.

Installation Notes

Installation should be performed by a licensed plumber or qualified pipefitter in accordance with applicable local plumbing codes and IPC guidelines. Shut off and depressurize the system completely before removing or installing any threaded fittings. Apply an appropriate thread sealant tape or compound to the male pipe threads before engagement; do not apply sealant to the female threads of this coupling. Hand-tighten first, then use a pipe wrench to bring the connection to proper engagement without over-tightening, which can crack the fitting body.