New series DDA, DDB, DDC and DDD damper actuators are perfect for positioning dampers and valves in HVAC applications.
Units are non-spring return and come in floating of modulating (4-20 mA or 0-10 VDC) inputs. They feature a direct-coupled design and are available in 17, 35, 53, 70, 88, 132, 177 and 265 in-lb torque sizes.
Actuators available from Dwyer Instruments incorporate position indicators, manual overrides, 60,000 nominal cycle life, and supply voltages of 120 VAC, 24 VAC or 230 VAC. Modulating units include 0-10 VDC position feedback.