1/2" x R20 Brass Adapter

Product Overview

The Uponor A4332050 Adapter is a QS-Style brass fitting engineered for direct transition between R20 and 1/2-inch copper connections. Designed for hydronic, plumbing, and mechanical system integration, this adapter provides a secure, pressure-rated connection between composite piping and copper tubing. Manufactured to precise dimensional tolerances, the fitting ensures consistent sealing performance under high temperature and pressure service conditions typical of professional installations.

Technical Specifications

• Model: A4332050
• Manufacturer: Uponor
• Series: QS-Style
• Product Type: Adapter Fitting
• Connection Type: R20 x 1/2 in. Copper (C x C)
• Nominal Size: 1/2 inch
• Hex Size: 1.0625 inches
• Overall Length: 1.3 inches
• Material: Brass
• Working Pressure: 125 PSI
• Temperature Rating: 220°F (104°C)
• Application: Hydronic and potable water systems; R20 to copper tube transitions
• Installation Method: Sweat solder (copper) and mechanical R20 connection
• Compliance: Lead-free; conforms to ASTM and NSF standards for potable water and heating systems

Professional Notes

Install using approved joining methods for copper and R20 connections per Uponor specifications. Apply uniform heat and appropriate solder for C x C joints, maintaining system integrity during assembly. Use torque control on the 1.0625-inch hex section to ensure correct mechanical engagement. Suitable for closed-loop hydronic and potable water service applications within rated limits.

Summary

The Uponor A4332050 QS-Style Adapter provides a reliable transition between R20 and 1/2-inch copper connections. Constructed of lead-free brass with a 1.0625-inch hex and 1.3-inch length, it is rated for 125 PSI at 220°F and designed for professional plumbing and hydronic system installations.