The part number 894-3471 refers to a Modutrol IV Proportional Reverse Acting Actuator manufactured by Cleaver Brooks. This actuator is designed for precision control of dampers and valves in industrial heating and combustion systems.

 Key Specifications

• Type: Proportional reverse acting actuator
• Input Signal: 135 Ohm (resistive control)
• Function: Reverse acting — closes when signal increases
• Application: Used in burner management systems, HVAC dampers, and industrial combustion controls
• Weight: Approx. 8.87 lbs
• Mounting: Typically flange-mounted to valve or damper assemblies