3/4 inch x 1/2 inch x 1/2 inch PEX Polyalloy Reducing Insert Tee Crimp x Crimp x Crimp

Viega 3/4" x 1/2" x 1/2" PolyAlloy PEX Crimp Reducing Tee – For Crosslinked Polyethylene Systems

The Viega PolyAlloy Reducing Tee is designed to join three PEX lines in a reducing branch configuration, specifically 3/4" main to dual 1/2" branches. Molded from engineered polymer, this fitting offers high resistance to dezincification, corrosion, and chemical leaching, making it suitable for potable water applications and hydronic systems.

Precision-molded for ASTM F1807 crimp systems, the fitting enables secure mechanical compression when installed using compatible copper crimp rings and tools. The polymer body offers thermal stability and dimensional consistency for dependable performance under both hot and cold water pressure cycles.

Product Highlights

• ✅ Crimp Connection System – Compatible with ASTM F1807 copper crimp ring installations; requires no glues, solder, or solvent welding.
• ✅ Corrosion-Resistant Polymer – PolyAlloy body resists scaling and pitting from aggressive water conditions and temperature fluctuations.
• ✅ Reduced Flow Disruption – Smooth internal surfaces minimize turbulence and maintain efficient water delivery through the joint.
• ✅ Lead-Free Compliance – Certified for use in potable water systems; complies with NSF/ANSI 61 and NSF 14 requirements.
• ✅ UV-Resistant – Suitable for use in areas with intermittent UV exposure (indoor conditions only).

Technical Specifications

• Nominal Sizes: 3/4" x 1/2" x 1/2"
• Material: PolyAlloy (Engineered Polymer)
• Connection: Crimp PEX x Crimp PEX x Crimp PEX
• Certifications: ASTM F1807, F877; NSF 61, NSF 14; CSA B137.5
• Pressure Rating: 160 psi @ 73°F; 100 psi @ 180°F

Installation Notes

Install using ASTM F1807-compliant copper crimp rings and an approved PEX crimp tool. Confirm ring placement is within manufacturer specifications and use a go/no-go gauge to verify crimp integrity. For potable water systems, always follow local plumbing code requirements regarding material compatibility and joint exposure limits.

Application Range

Primarily used in residential and commercial potable water systems and hydronic heating loops. The reducing tee design is ideal for distributing water from a larger supply line into smaller branches. Frequently installed in in-wall plumbing assemblies and manifolds.

Additional Insight

PolyAlloy fittings such as this Viega tee offer a lower thermal conductivity compared to metal alternatives, which can improve system insulation and reduce risk of condensation at the joint.

This Viega reducing tee delivers consistent joint performance in PEX plumbing systems requiring dimensional stability, ease of installation, and chemical resistance. Specify Viega PolyAlloy components to meet both mechanical and regulatory demands on your next rough-in or retrofit.