Description
Taco Comfort Solutions 573-2 Hydronic Zone Valve
The Taco Comfort Solutions 573-2 is a 1-1/4″ sweat-connection, 24-volt, 2-way hydronic zone valve engineered for dependable flow control in residential and light commercial hot water heating systems. With a generous 7.2 Cv flow coefficient, this valve delivers the capacity needed to serve larger zones without sacrificing pressure performance, making it an ideal choice for baseboard, radiant floor, and fan-coil zoning applications.
Key Features
- 1-1/4″ sweat (solder) end connections for secure, leak-free installation
- 24V AC control voltage — compatible with standard zone controllers and thermostats
- 2-way (normally closed) valve design for straightforward on/off zone control
- 7.2 Cv flow coefficient supports high-flow zone demands
- Motorized actuator provides reliable open/close operation with each call for heat
- Compact, durable construction suited for residential and light commercial hydronic systems
- Designed and backed by Taco Comfort Solutions — a trusted name in hydronic heating
Application
The 573-2 is well suited for zoning hot water heating systems including baseboard radiation, radiant floor heating loops, and fan-coil units. Its 1-1/4″ sweat connection makes it easy to integrate into copper piping systems, and the 24V operating voltage ensures compatibility with virtually all zone control panels and thermostats on the market.
Why Choose Taco Zone Valves
Taco Comfort Solutions has been a leader in hydronic heating products for decades. Their zone valves are recognized for long service life, quiet operation, and consistent performance season after season — helping contractors and building owners achieve precise, energy-efficient zone control with minimal maintenance.







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