Uponor LF7701010 Adapter Tee 1x1x1/2 in Propex Fnpt Brass

Product Description

The UPONOR LF7701010 is a lead-free brass adapter tee designed for use in ProPEX expansion-style PEX piping systems. It connects two 1-inch ProPEX ports in-line while providing a 1/2-inch female NPT (FNPT) branch outlet, allowing a threaded connection to be added at the tee without additional adapters. The lead-free brass construction meets drinking water contact requirements. This fitting is installed by licensed plumbers working on residential and light commercial hydronic or domestic water distribution systems that use Uponor ProPEX tooling and PEX-a tubing.

This adapter tee is suited for domestic hot and cold water distribution, radiant heating supply and return manifold branches, and hydronic systems where a threaded instrument, valve, or sensor needs to be tapped into a 1-inch PEX-a main line. The FNPT branch port accepts standard 1/2-inch NPT male fittings, making it a practical choice when integrating pressure gauges, thermometers, ball valves, or similar threaded components into a PEX-a piping layout.

Key Features

• Lead-free brass construction meets Safe Drinking Water Act requirements for potable water applications
• Two 1-inch ProPEX expansion ports for in-line PEX-a main run connections
• 1/2-inch FNPT branch outlet accepts standard NPT male threaded fittings
• ProPEX design requires an Uponor ProPEX expansion tool and compatible PEX-a tubing for proper installation
• Tee configuration eliminates the need for a separate ProPEX-to-thread adapter at branch points

Compatibility

Designed for use with Uponor ProPEX expansion-style PEX-a piping systems using 1-inch PEX-a tubing on the run ports and 1/2-inch NPT male threaded fittings on the branch port.

Installation Notes

Installation requires a calibrated Uponor ProPEX expansion tool and the correct PEX-a expansion rings sized for 1-inch tubing. Shut off and depressurize the water supply before cutting into an existing line. Allow the expanded fitting connection to recover for the manufacturer-recommended time before pressurizing. Thread connections on the FNPT branch should be made with PTFE tape or thread sealant in accordance with applicable plumbing codes such as the IPC or UPC.

Technical Specifications

• Connection Type: ProPEX x ProPEX x FNPT
• Run Port Size: 1 inch x 1 inch
• Branch Port Size: 1/2 inch
• Material: Lead-Free Brass
• Origin: Import

Standard Information

• Brand: UPONOR
• Manufacturer Part Number: LF7701010