Nibco H-7-2166w Wp 1-1/2 Inch Fpt G-union Adapter

Product Description

The NIBCO h-7-2166w wp is a 1-1/2 inch female pipe thread (FPT) to G-Union adapter fitting designed for plumbing and mechanical piping systems. This fitting connects a standard 1-1/2 inch FPT threaded pipe end to a G-Union connection point, allowing for easy disconnection and reconnection of piping sections without disturbing the rest of the system. It is typically installed by licensed plumbers in both residential and light commercial applications where serviceable unions are required at equipment connections or branch isolations.

This G-Union adapter is suited for use in water supply and distribution piping, hydronic heating systems, and other fluid-handling applications that require a union-style connection at a female-threaded pipe terminus. The FPT thread end mates with standard NPT male-threaded pipe or fittings. The G-Union end provides a standardized interface for quick disconnect service work, making it a practical choice wherever routine equipment service or replacement is anticipated.

Key Features

• 1-1/2 inch FPT thread inlet for connection to standard NPT male pipe threads
• G-Union outlet allows for tool-assisted disconnection without cutting pipe
• Serviceable union design supports routine maintenance and equipment swaps
• Compact adapter form factor for tight mechanical room installations

Compatibility

Designed as an OEM-style replacement or direct-install adapter for plumbing and hydronic piping systems using 1-1/2 inch NPT female-threaded connections paired with G-Union style fittings.

Installation Notes

Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and the International Plumbing Code (IPC). Shut off and depressurize the water supply and drain the affected piping section before removing or installing this fitting. Apply an appropriate thread sealant or PTFE tape to all NPT threaded joints. Do not overtighten the union nut, as this may damage the sealing surfaces.

Technical Specifications

• Connection Type: 1-1/2 inches FPT x G-Union
• Thread Standard: NPT (Female)
• Pipe Size: 1-1/2 inches

Standard Information

• Brand: NIBCO
• Manufacturer Part Number: h-7-2166w wp