3/4" x R20 Brass Conversion Nipple

Product Overview

The Uponor A4322075 Conversion Nipple is a QS-Style brass fitting engineered for direct connection between R20 and 3/4-inch NPT threaded systems. Designed for hydronic, plumbing, and mechanical applications, this component ensures a secure transition between composite or polymer piping and threaded metallic assemblies. Its construction supports consistent performance under elevated temperature and pressure conditions common to professional-grade installations.

Technical Specifications

• Model: A4322075
• Manufacturer: Uponor
• Series: QS-Style
• Product Type: Conversion Nipple
• Connection Type: R20 x 3/4 in. NPT
• Nominal Size: 3/4 inch
• Hex Size: 1.0625 inches
• Overall Length: 1.67 inches
• Material: Brass
• Working Pressure: 125 PSI
• Temperature Rating: 220°F (104°C)
• Application: Hydronic heating, plumbing transitions, mechanical system integration
• Compliance: Lead-free; meets applicable ASTM and NSF performance requirements

Professional Notes

Install using appropriate torque on the 1.0625-inch hex section to ensure a sealed and mechanically sound joint. Use approved thread sealant on NPT threads to prevent leakage under system pressure. This component is intended for use in pressure-rated water and hydronic circuits, maintaining compatibility with Uponor QS-Style R20 fittings.

Summary

The Uponor A4322075 QS-Style Conversion Nipple provides a reliable R20 to 3/4-inch NPT transition for professional plumbing and hydronic applications. Fabricated from lead-free brass, it measures 1.67 inches in length, includes a 1.0625-inch hex, and is rated for 125 PSI at 220°F service conditions.