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Pfeiffer ACP 40 Multi-stage Root Pump

Standard, single phase, manual gas ballast | V8SACSGEMF


ACP 40 Series 2 Dry Mechanical Vacuum Pump


The vacuum pumping technology for Pfeiffer ACP 40 ACP40 compact dry roughing vacuum pumps is based on a frictionless multi-stage roots design. These ACP series pumps are optimized for operation without lubricants inside the pumping module. The benefits of multi-roots dry pumps include oil-free and particulate free dry vacuum, e.g., unlike their counterparts, the dry scroll pump which generate tip seal dust and the oil-sealed rotary vane pumps which suffer from hydrocarbon vapor back-streaming. The new and improved ACP dry vacuum pumps offer a reduced cost of ownership (COO) and require an overhaul only every 22,000 hours.


These Pfeiffer ACP pumps include a single-phase integrated frequency converter with built-in instant voltage range selection. This allows these pumps to be smart and operate on any input voltage from 90 to 254 VAC at 50 or 60 Hz (with no motor setting changes required) while the rotational speed and pumping speed of the pump remains constant. This is a big selling point for OEM applications, if your tool or instrument is mobile the ACP pump can be used in any country or location that has 90 to 254 VAC 50 or 60 Hz wall plug.

  • frequency converter
  • powered in wide range of voltage (50/60 hz)
  • automatic voltage range selection
  • constant rotational speed
  • versatile operation speed 
  • flexibility to pumping process 

The specifications for the Pfeiffer ACP 40 dry vacuum pump is 22 cfm (37 m3/hr) pumping speed, 22.5 mTorr ultimate pressure, can operate on input voltages from 90 to 254 VAC 50-60 Hz, air cooled, includes integrated digital timer, and has a KF40 inlet & KF25 exhaust. The repair kits and optional accessories for these ACP series dry vacuum pumps are sold on our website.

Technical Specifications

Ambient temperature 12-40 °C | 53.6-104 °F | 285-313 K
Connection flange (in) DN 40 ISO-KF
Connection flange (out) DN 25 ISO-KF
Continuous inlet pressure, max. 1,013 hPa | 759.75 Torr | 1,013 mbar
Cooling method Air
Dimensions (L x W x H) 647 x 193 x 322 mm | 25.47 x 7.6 x 12.68 inch
Exhaust pressure, max. 1,200 hPa | 900 Torr | 1,200 mbar
Gas ballast Yes
Gas ballast flow 2.4 m³/h | 1.41 cfm | 40 l/min
Helium leakage rate, max. 5 · 10-7 hPa·l/s
Mains cable Yes, EU mains cable
Mains connection 110 – 230 V AC (±10%) 50/60 Hz
Mains connection: frequency (range) 50/60 Hz
Max. pumping capacity of pure water vapor at 20°C 120 g/h
Power consumption at final pressure 700 W
Processes Light Duty Applications
Pumping speed 37 m³/h | 21.78 cfm | 616.67 l/min
Sound pressure level 65 dB(A)
Version Standard
Weight 32 kg | 70.55 lb

Pumping Curves

scp 40 scp40


ISO-KF, welded bellows sealed

Noise Reduction

    • Exhaust silencers

    • Noise reduction covers



User Manual Data Sheet

For more documentation, please visit DigiVac’s folder.

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Pfeiffer ACP 40 Multi-stage Root Pump V8SACSFEMF
Pfeiffer ACP 40 Multi-stage Root Pump | standard, single phase, manual gas ballast | V8SACSGEMF