PM/DM Series

Rotork Type K rotary pneumatic damper drives are offered in two basic configurations; the PM Series (Pedestal Mount) and the DM Series (Direct Mount). Both Series provide accurate quarter-turn control to dampers on combustion air and flue gas applications. They offer modulating control, isolation open / close control and bus network control to fit your operating needs.

See brochure for a complete listing of boiler, furnace and process heater applications, torques and speeds and control options.

  • Improved damper operation – higher torque output with same footprint
  • 100% duty cycle, rated for continuous modulating service
  • High torque / high speed – up to 20,800 lbf.ft with stroke speed as low as 3 seconds full scale
  • Easily serviced with ‘open frame’ design
  • Excellent in harsh, high-temperature environments
  • Virtually zero air bleed in resting state
  • ‘Drop-in-Place’ retrofit eliminated field engineering, speeds up installation

With a Type K retrofit damper drive:

  • The drive shaft and drive lever are in the exact same place relative to the floor mounting bolt holes
  • The base and mounting holes will match the existing drive
  • The lever will be dimensionally identical to the existing lever and will rotate through the same arc
  • No costly field design or fabrication
  • Complete field support offer by the extensive Rotork Site Services global network

The Type K FasTraK program offers PM Series drives with one week delivery to replace the most common legacy damper drives. Twelve models available – see drawings on the literature page.

Please see this Case Study as an example of how TYPE-K DM can be retrofitted to an existing plant to reduce emission and improve reliability.

See Main Type K Catalogue for further details.

PM-DM Series Type K Damper Drive