Caleffi 520619AC AngleMix 3-Way Thermostatic Mixing Valve 1" Sweat Union with Inlet Check Valves & Temperature Gauge, Cv 3.5

The Caleffi 520619AC is an AngleMix 3-way thermostatic mixing valve with 1" sweat union connections and inlet check valves and temperature gauge. It mixes supply and return water to deliver a controlled outlet temperature to the heating circuit.

AngleMix valves are 3-way thermostatic mixing valves for hydronic heating systems. They blend hot supply water with cooler return water to hold a steady, adjustable supply temperature for low-temperature circuits such as radiant floor heating. The angle body pattern simplifies piping on near-boiler and manifold installations. The built-in check valves on the inlets help prevent unwanted thermosiphoning and cross-flow between the hot and cold ports.

Before ordering, confirm your piping is 1" and suited to sweat connections, and that a flow capacity of Cv 3.5 matches your circuit's design flow. This valve is for hydronic heating, not for potable hot water tempering.

Specifications

• Brand: Caleffi
• Manufacturer Part #: 520619AC
• Series: AngleMix (520 Series)
• Type: 3-Way Thermostatic Mixing Valve, Angle Pattern
• Size: 1"
• Connection: 1" sweat (copper) union x sweat union
• Flow Capacity (Cv): 3.5
• Material: Brass
• Includes: Temperature Gauge
• Check Valves: Inlet check valves
• UPC: 8016615656473
• Category: Mixing Valve - Angled

Documents

• Technical Data Sheet (PDF)
• Installation & Operation Manual (PDF)
• Submittal Sheet (PDF)
• Product Brochure (PDF)

See also: mixing valve - angled, all Caleffi products.