Taco Geothermal Zone Valves
Geothermal series zone valves by Taco are heat-motor, 2-way type zone valves with 3-wire terminal block connections, 24V power supply and an end switch. Models available in sizes 3/4" and 1" with threaded or sweat connections.
These zone valves were designed specifically for use in geothermal systems which have inherently high head and permit the movement of water into the coil before the heat pump starts.
Each valve consists of a durable bronze body and a removable powerhead. The later allows to service the valve without draining the system and without having to replace the entire zone valve.