Replacement Motorized Zone Valve For Heating Systems With 3/4 Sweat Connection, 2-Wire Thermostat Control And End Switch, 2-Way 4-Wire 24V, Fits Most Hot Water Heating Loops, Ideal DIY Fix For Failed Honeywell Zones

Replacement motorized zone valve for 3/4 sweat connection (single unit)
✔️ 2-wire thermostat with end switch, NC, 24V, 3/4 in brass

This motorized zone valve is a direct replacement for failed heating zone heads in hot water systems, suitable for both residential and light commercial setups. It works with standard 24V thermostats and includes an end switch for boiler or circulator control. The 3/4 in sweat connection and brass body deliver durable, corrosion‑resistant performance in common heating installations.

✅ 3/4 in (19.05 mm) sweat connection brass valve body, normally closed (NC)
✅ 24 VAC, 50/60 Hz operation; 2-way 4-wire control with end switch
✅ Cv 3.5; safe working water pressure up to 20 psi
✅ Max operating temp 250°F (121°C); ambient up to 125°F (52°C)
✅ 18 in (457 mm) leads; mounting screws and instructions included
✅ Fits most hot water heating loops; replacement for failed Honeywell zones

💡 What is a motorized zone valve used for in heating systems?

This handy device regulates water flow to heating zones by responding to thermostat signals. - For zoning hot water loops in hydronic heating - Easy DIY replacement with 24V control and end switch - Works with 3/4 in sweat piping for common installations