3/8" x 1/2" PolyAlloy Straight Stop Valve PEX Crimp x Closet (Plastic Nut) (Installation by Non-Professional may void Viega's LLC limited warranty)

Viega 3/8" x 1/2" PolyAlloy Straight Stop Valve – Compact, Corrosion-Resistant Control for Water Supply Lines

The **Viega 3/8" x 1/2" PolyAlloy Straight Stop Valve** is a high-performance solution for controlling flow to individual fixtures in residential and commercial plumbing systems. Designed with Viega’s proprietary PolyAlloy material and engineered for long-term durability, this valve delivers consistent shutoff performance in high-demand environments while resisting scale, corrosion, and chemical degradation.

Rugged Polymer Construction with Chrome Finish

This straight stop valve offers a dependable shutoff point for sinks, toilets, or other water-fed fixtures. With a chrome-plated exterior and internally molded PolyAlloy body, it ensures superior chemical resistance without sacrificing appearance or performance. Ideal for use with PEX systems, the valve connects securely using Viega's PureFlow press fittings.

Professional Features and Benefits

• PolyAlloy Body – Offers excellent strength-to-weight ratio and resists corrosion, dezincification, and mineral buildup.
• High Pressure Rating – Rated to 160 PSI, suitable for a wide range of residential water systems.
• Temperature Range – Operates effectively in systems from 0°F to 180°F, making it suitable for hot and cold water lines.
• Chrome-Plated Finish – Aesthetic appeal with added surface durability for exposed valve installations.
• Domestic Manufacturing – Made in the USA with strict adherence to performance and safety standards.

Technical Specifications

• Connection Type: 3/8" compression outlet x 1/2" PEX (F1807) inlet
• Body Material: PolyAlloy with chrome finish
• Pressure Rating: 160 PSI
• Temperature Rating: 0°F to 180°F
• Application: Potable water systems
• Certifications: NSF 61, NSF 372, ANSI/NSF Standard 14

Installation Considerations

Designed for quick, reliable integration into PEX systems, the valve is installed using standard ASTM F1807 crimp or clamp connection methods. It is recommended that installation be performed by a licensed plumbing professional to ensure proper system alignment, secure sealing, and compliance with local code requirements.

Trusted Performance in Demanding Environments

The Viega PolyAlloy stop valve provides a lightweight alternative to brass without compromising strength or reliability. Its compact profile and ease of installation make it ideal for use in confined spaces or prefabricated installations where time and precision matter.

Built for the Trade

Whether you're roughing in a new bathroom or replacing a fixture shutoff, the **Viega 3/8" x 1/2" PolyAlloy Straight Stop Valve** delivers the consistent performance, chemical resistance, and code compliance professional contractors require. Viega’s focus on polymer engineering and system reliability makes this valve a smart choice for modern plumbing applications.