Taco 573-1 Heat Motor Zone Valve

Introducing the Taco 573-1 Heat Motor Zone Valve — a reliable 2-way valve designed for precise control in hydronic heating systems. The Taco 573-1 combines electronic actuation with a durable bronze body for long-lasting performance in water-based applications.

With a nominal size of 1-1/4 inches and end connections soldered x soldered, this valve delivers smooth, quiet operation in residential or commercial radiant heating setups. It features 24 V AC at 60 Hz input with a 0.9 A draw, a temperature range of 40 to 240°F, and a 125 PSI pressure rating to handle typical heating installations.

• Type and size: 2‑Way, 1-1/4" nominal, soldered x soldered end connections.
• Actuation: Electronic actuation with 24V AC at 60 Hz; quiet operation.
• Materials: Bronze body with bellows or globe valve construction for rugged dependability.
• Media and flow: Water as the media; 10–16 GPM flow, ideal for hydronic heating systems.
• Inclusions: Manual Open (Bypass) lever, twist-off head; valve position NO; easy to install.

Engineered for silent operation and durable performance, this valve provides dependable zone control in modern hydronic heating applications.