Dixon Valve Coupling FBB125 Brass Suction Coupling Npsm

Product Description

The DIXON VALVE COUPLING FBB125 is a female suction coupling designed for fluid transfer applications requiring a reliable NPSM-threaded connection. Built from brass, this short-shank coupling provides a durable, corrosion-resistant fitting suited to suction-line service. Weighing 0.1 pounds, it is a compact, lightweight component that plumbers and fluid-system technicians install on suction hose assemblies and pump inlet lines. The short-shank design keeps the connection profile low where space is limited, while the NPSM thread ensures a standard, leak-resistant fit to mating couplings and adapters.

The FBB125 is used in suction-side hose and piping assemblies across residential, commercial, and light industrial applications. Typical install scenarios include pump inlet connections, irrigation system suction lines, and general fluid-handling equipment where a brass female coupling with NPSM thread is specified. Its brass construction makes it appropriate for water, mild chemicals, and other media compatible with copper-alloy fittings.

Key Features

• Brass construction provides corrosion resistance for water and compatible fluid service
• Short-shank design suits confined installation spaces
• NPSM thread type for standard suction-coupling engagement
• Female coupling configuration for direct connection to male-threaded hose ends or pump ports
• Lightweight at 0.1 pounds, minimizing load on hose assemblies

Compatibility

Designed as an OEM-style replacement or direct-fit female suction coupling for fluid-handling systems requiring a short-shank brass NPSM-threaded fitting.

Installation Notes

Installation should be performed by a licensed plumber or qualified fluid-systems technician. Shut off the pump and depressurize the suction line before removing or installing any coupling. Apply thread sealant appropriate for brass NPSM connections per the fitting manufacturer and applicable IPC guidelines. Do not overtighten; hand-tighten plus a controlled partial turn is typical practice for NPSM fittings to avoid thread damage.