Discover the advanced functionality of the 520 Series AngleMix™ thermostatic mixing valve by Caleffi North America. This brief overview showcases an industry-exclusive angle-style valve body engineered specifically to mount directly on top of standard domestic water heaters. By eliminating the need for complex pipe routing and extra elbow fittings, the AngleMix™ minimizes material costs, saves valuable mechanical room space, and drastically shortens field installation time.

In addition to its layout benefits, this high-performance tempering valve utilizes tight close-off internal mechanics to deliver exceptional temperature regulation performance and complete protection against thermal cross-flow.

Key Features and Specifications Covered in This Overview
Industry-Exclusive Angle Body: Designed to match standard top-port water heater piping configurations perfectly, reducing a typical multi-joint piping arrangement down to a simple, compact installation.

Elimination of Temperature Creep: Features robust, tight close-off inlet check valves that optimize mixing accuracy and prevent hot-to-cold thermal bleeding during periods of zero system demand.

Rigorous Regulatory Certifications: Certified by ICC-ES to comply with ASSE 1017, CSA, and NSF 372 low-lead material standards, ensuring absolute compliance with IPC, IRC, UPC, and NPC plumbing codes across North American municipalities.

Flexible Fitting Configuration: Available for 3/4" pipe sizes with a choice of sweat or press union connection tailpieces, and can be ordered as a body-only configuration or complete with an integrated dial temperature gauge.

Contractor & Installer Note: Traditional thermostatic mixing valve configurations require multiple elbows, nipples, and extra labor steps to properly bridge the space between the cold supply line and the hot outlet. The AngleMix™ streamlines this entire layout into a clean, straight-through drop-down connection that lowers leak risks and callback rates.