The Caleffi Z111900 High Current Actuator is a 24V electromechanical actuator designed to control valve operation in HVAC hydronic systems. It operates by converting electrical signals into mechanical movement, allowing precise valve positioning and regulation of water flow. Its high-current design supports reliable operation in demanding heating and cooling applications. https://www.partshnc.com/z111900-caleffi-high-current-actuator-wes-24v