Beck rotary damper drives and rotary actuators are a benchmark in industrial control damper actuation. Unlike typical electric actuators, Beck damper drives and valve actuators are capable of continuous modulation and precision control without thermal duty-cycle or motor burnout concerns. Beck damper drives and actuators are specifically designed for harsh indoor and outdoor industrial environments and perform consistently over time. Group 11 damper drives and rotary actuators eliminate the performance problems typical of pneumatic and conventional electric actuators and are virtually maintenance-free.
Available in torque output ratings up to 7050 nm (5200 lb-ft).
120 V ac, single-phase
240 V ac, single-phase
Operating Conditions -40° to 85° C. (-40° to 185° F.), 0% to 99% relative humidity
Isolation Demand Input and Position Feedback signals are isolated from the ground and the ac power line.
Action on Loss of Power Stays in place.
Action on Loss of Input Signal (Power On) Stays in place or, on some drives, is field configurable to move to any preset position.
Limit Switches Two SPDT switches (one for each direction of travel) provide over-travel protection.
Auxiliary Switches Up to four 6 A, 120 V ac switches available. Switches are labeled S1 to S4 and are cam-operated and field-adjustable.
Handswitch Permits local electrical operation, independent of controller signal. Standard on all units. An optional auxiliary contact can be used to indicate that the Handswitch is in "AUTO" mode or to sound an alarm if it is taken out of "AUTO".
Modulating Control Deadband is 0.6% of span (configurable) Minimum step is typically 0.1% Standard Control inputs 4-20mA or 120VAC. Others available on request
For general information on specific models, please click on the links below.