This is a Danfoss CI 5-2 22Z 24V AC Motorized Control Valve. It is a direct-acting, two-way on/off valve designed for the control of air, water, oil, and other fluids in automatic systems. It is equipped with an integrated AC motor that allows for active, continuous, proportional control of flow. The CI 5-2 22Z 24V AC valve is designed for systems that require dynamic control of pressure, temperature, flow rate, and/or other application-dependent parameters. It features a high precision, dynamic control of up to 15Nm torque (at 24V AC) and is capable of being triggered via 230V or 0-10V switching signals. Additionally, the valve is corrosion resistant and contains a servo-assisted closing element to ensure safe closure.