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Pfeiffer DUO 2.5 Dual Stage Rotary Vane Vacuum Pump 2.5 CFM REBUILT PKD41062E


SKU: 40.00001.02

Additional information

Weight 35 lbs
New / Rebuilt

Level of Vacuum

CFM / L/M (Displacement)

Inlet / Exhaust

Power Options



Pfeiffer Duo 2.5 Vacuum Pump. Rebuilt. In Stock. Next Day Shipping. All Pfeiffer Duo 2.5 high vacuum pumps rebuilt and sold through AVAC have been completely disassembled, cleaned, re-machined and carefully inspected for wear by our factory trained technicians. Units are assembled with new vanes, shaft seals, exhaust valves, gaskets, springs, oil pumps and bushings, prior to undergoing an extended performance test to meet or exceed OEM specifications. All pumps are then painted, detailed, and pass a final quality assurance inspection prior to shipping. A final test certificate is provided with each pump, which will be covered with a one-year warranty.

Pfeiffer DUO 2.5 rotary vane vacuum pumps address the requirements of all major vacuum applications in diverse industries. Perfect for testing laboratories.This high performance series pumps down to 10-3 mbar. It is available in five different series, these pumps are dedicated to specific applications, with most models available in universal single phase or three phase.


  • Compact design
  • Broad Range of Pumping Speeds
  • Designs for Specific Applications
  • Low Noise Levels
  • Universal Motor
  • Gas Ballast

Different fluids, such as PFPE fluids, corrosive configurations, and motor voltages are available. Please call for details.

Where indicated by price, most models are available new or completely remanufactured, covered with a full one year warranty.

Pfeiffer Dual Stage Rotary Vane Vacuum Pump DUO 2.5 2.5 CFM REBUILT PKD41062E Specifications


Single Stage
Two Stage
UNO 2.5 A DUO 2.5 A/AC
Connection nominal diameter
Input                                                                                        Output


Nominal volume flow rate at
50 Hz                                                                                        m3/h 2,8 2,8
60 Hz                                                                                         m3/h 3,3 3,3
Volume flow rate at
50 Hz                                                                                         m3/h 2,5 2,5
60 Hz                                                                                         m3/h 2,9 2,9
Final pressure
Total without gas ballast                                                           mbar
Total with gas ballast                                                                 mbar

< 5 • 10-2
< 1

< 5,0 • 10-3
< 6,0 • 10-3
Max. pressure ( in continuous operation)                                    bar 1,5 1,5
Water vapour compatibility                                                      mbar 15 15
Water vapour capacity at 50/60 Hz                                             g/h 37 37
Noise level
Without gas ballast                                                                   dB(A)
With gas ballast                                                                        dB(A)


Operating fluid                                                                                 I 0,45 0,4
Max. permissible
Operating temperature1)                                                                                   °C 80 80
Rotation speed at 50 Hz                                                          1/min 2800 2800
Rotation speed at 60 Hz                                                          1/min 3350 3350
Rated power, motor                                                                     kW 0,13 0,13
Weight                                                                                           kg 10,2 10,5

Click Below for Specification Sheet

Pfeiffer DUO 2.5 Dual Stage Rotary Vane Vacuum Pump