Siemens Building Technology SSD61.5U Actuator 322838-752 Durable Construction: Zinc-plated housing and

Durable Construction: Zinc-plated housing and NEMA 1 enclosure rating protect the internal calibration spring and diaphragm from harsh mechanical environments

standard rubber won't cut it

and 45FS1 series

If the metal seat is damaged

Siemens Building Technology SSD61.5U Actuator 322838-752 Durable Construction: Zinc-plated housing andThe Siemens SSD61. 5U is a high performance 0 10Vdc electronic valve actuator engineered for precise proportional control in HVAC applications. Designed for seamless integration with 1 2 inch to 1 1 4 inch Pressure Independent Control Valves (PICV), this unit delivers a nominal force of >56 lbs (250N) to ensure reliable operation in chilled and hot water systems. A critical feature of the SSD61. 5U is its spring return fail safe mechanism, which