This direct drive motor is engineered for continuous duty

Technicians should inspect the diaphragm during routine maintenance or if the valve exhibits "hunting" or delayed shut-off

Durable Construction: High-grade insulation protects against common failure points like moisture buildup and coil burnout

Includes the specific conversion spring needed for calibrated gas valve adjustments

High Precision: Modulating 0-10Vdc control signal provides granular accuracy for VAV and air handling units

Siemens Building Technology SSD61.5U Actuator 319852-301 This direct drive motor isThe 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