Rotork Type K PM/DM Series Pneumatic Damper Drive

The Rotork Type K PM/DM Series is a rotary pneumatic damper drive available in two mounting configurations: Pedestal Mount (PM) and Direct Mount (DM). The Pedestal Mount variant elevates the actuator off the damper shaft to keep it clear of hot, dirty service environments, while the Direct Mount variant couples the actuator directly to the damper shaft for compact installations. Both configurations deliver accurate quarter-turn control of dampers on combustion air, flue gas, and ductwork applications across utility power plants, refineries, powerhouse boilers, furnaces, and process heaters.

Type K PM/DM actuators support modulating, isolation open/close, and bus-network control modes – giving plant engineers a single, proven actuator family for the full range of damper duties. The vane-style pneumatic design eliminates the rod and seal maintenance of traditional cylinder-and-piston damper drives, with documented performance benefits including increased boiler efficiency, reduced maintenance, lower fuel consumption, and reduced harmful emissions.