Uponor Q4771513 Reducing Coupling 1-1/2 X 1-1/4 in Propex

Product Description

The UPONOR Q4771513 is a reducing coupling designed for use in ProPEX expansion-style piping systems. It transitions from a 1-1/2 inch nominal pipe connection down to a 1-1/4 inch nominal pipe connection, allowing plumbers and mechanical contractors to reduce line size within a system without additional adapters. The fitting is manufactured from modified polyphenylsulfone (MPPSU), a high-performance thermoplastic that offers excellent resistance to heat, pressure, and chlorinated water. This fitting is domestically manufactured and suited for potable water and hydronic distribution applications.

This reducing coupling is intended for use in residential and light commercial plumbing and hydronic systems where PEX piping is installed using the ProPEX expansion method. Typical applications include main-to-branch transitions in domestic hot and cold water distribution lines and in-floor or panel heating systems where a step-down in pipe diameter is required. Installation is performed by licensed plumbers or mechanical contractors using a ProPEX expansion tool and the appropriate ring size for each end of the fitting.

Key Features

• Reduces from 1-1/2 inch nominal to 1-1/4 inch nominal in a single fitting
• ProPEX end style for use with PEX expansion tooling
• Modified polyphenylsulfone construction for high heat and chemical resistance
• Domestically manufactured
• Compatible with standard ProPEX expansion rings for each respective pipe size

Compatibility

Designed as an OEM-style fitting for ProPEX expansion-method PEX piping systems using 1-1/2 inch and 1-1/4 inch nominal pipe sizes.

Installation Notes

Installation should be performed by a licensed plumber in accordance with local plumbing codes and ASTM F1960 expansion fitting standards. Shut off the water supply and depressurize the line before cutting or fitting. Use the correct ProPEX expansion tool and rings sized to match each end of the fitting. Allow the expanded PEX ring to recover fully around the fitting before pressurizing the system.

Technical Specifications

• Nominal Size: 1-1/2 x 1-1/4 inches
• End Style: ProPEX
• Material: Modified Polyphenylsulfone (MPPSU)
• Origin: Domestic

Standard Information

• Brand: UPONOR
• Manufacturer Part Number: Q4771513