1 inch PEX Polyalloy 90 Degree Insert Elbow Crimp x Crimp

1 inch VIEGA PolyAlloy PEX Crimp Elbow – Built for Professional-Grade Performance

The 1 inch VIEGA PolyAlloy Elbow is engineered to provide a secure 90-degree change in direction for PEX piping systems. Manufactured from high-strength polyphenylsulfone (PPSU), this elbow offers outstanding resistance to chemical corrosion, high temperatures, and pressure fluctuations—making it a reliable solution for long-term performance in potable water and hydronic applications.

Its crimp-style connection is compatible with ASTM F1807 copper crimp rings and stainless steel clamp systems, ensuring secure joints in PEX installations. This fitting is lead-free and meets rigorous U.S. plumbing codes, making it suitable for both residential and commercial systems where mechanical reliability and regulatory compliance are essential.

Key Performance Features

• ✅ Engineered PolyAlloy Material – Lightweight and corrosion-resistant PPSU construction withstands thermal cycling and scaling.
• ✅ Reliable Mechanical Seal – Compatible with copper crimp rings and stainless clamps for strong, leak-free connections.
• ✅ Thermal Stability – Rated for continuous service temperatures up to 200°F and pressures up to 200 PSI (when used with properly rated PEX tubing).
• ✅ Low Conductivity – PolyAlloy composition minimizes heat transfer, ideal for hydronic systems where temperature retention is critical.
• ✅ Code Compliant – Certified to NSF/ANSI 14, 61, and 372 standards for potable water systems and lead-free compliance.

Technical Specifications

• Material: Polyphenylsulfone (PPSU) – PolyAlloy
• Size: 1 inch nominal
• Connection: Crimp PEX x Crimp PEX (ASTM F1807)
• Angle: 90 degrees
• Certifications: NSF 61, NSF 14, ASTM F2159, CSA B137.5

Application Scope

This elbow fitting is commonly used in potable water distribution systems, radiant heating applications, and other PEX-based installations where precise directional changes are required in confined spaces. Its lightweight construction facilitates fast installation without compromising system strength or flow performance.

Installation Notes

Use with a PEX crimp tool and ASTM F1807 copper rings or stainless clamps for secure joints. Ensure that all connections meet local plumbing codes and manufacturer guidelines. Proper alignment during installation helps maintain hydraulic efficiency and reduces mechanical stress on the system.

Did You Know?

PolyAlloy fittings like this VIEGA elbow provide comparable strength to brass at a fraction of the weight—and they eliminate the risk of dezincification, making them highly resistant to pitting and long-term wear in aggressive water conditions.

The 1 inch VIEGA PolyAlloy PEX Crimp Elbow delivers the precision, durability, and code compliance professionals demand in high-performance plumbing environments. Designed to meet the toughest industry standards, it’s the right choice when your project requires longevity and mechanical integrity.