The Siemens modulating control valve is designed for use in chilled and low-temperature hot water systems. It features a magnetic actuator with a fast positioning time of less than 2 seconds and a high-resolution stroke for precise control. The valve offers an equal-percentage or linear valve characteristic, allowing for user-selected control. With an operating voltage of AC/DC 24V, it can be controlled using a switch-selected control signal of DC 0/2 to 10V or DC 4 to 20mA. The control valve also has indication of operating state, position feedback, and manual control for added convenience. It is a high-performance valve with low friction and no maintenance required. Equal-percentage or linear valve characteristic Operating voltage AC / DC 24 V Switch-selected control signals, DC 0/2 to 10 V, DC 4 to 20 mA Indication of operating state, position feedback, and manual control Wear-free inductive stroke measurement Low friction, robust design with no maintenance required