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Pfeiffer ACP 15 Multi-stage Root Pump

Standard, single phase, manual gas ballast | V5SATSMGEF


ACP 15 Series 2 Dry Mechanical Multistage root Pump


The vacuum pumping technology for these new Pfeiffer ACP series compact dry roughing vacuum pumps is based on a frictionless multi-stage roots design. The Pfeiffer ACP G series dry pumps are specially designed for pumping traces of corrosive gas and therefore require an inert gas purge which protects the pump bearings. These Pfeiffer Adixen 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 pumps which generate tip seal dust and the oil-sealed rotary vane pumps which suffer from hydrocarbon vapor backstreaming. The new and improved ACP dry vacuum pumps offer a reduced cost of ownership (COO) and require an overhaul only every 22,000 hours.

Pfeiffer Vacuum PUMP ACP15 STANDARD MANUAL, Pfeiffer-Adixen Dry Multi-Stage Roots Vacuum Pumps, PN V5SATSMGEF


Dry pumps for light duty processes
Based on the proven technology of the dry multi-stage roots pumps, Pfeiffer Vacuum offers a wide selection of high-power ACP series vacuum pumps for light duty processes. The most important characteristics for pumps in these applications are a high pumping speed and robustness as well as high reliability.

Air-cooled multi-stage roots pumps from the ACP series
The multi-stage roots pumps of the ACP series are designated for oil- and particle free applications in the pressure range between atmospheres and down to 22 mTorr. The air-cooled pumps are the optimal replacement for rotary vane pumps when used in residual gas analysis systems, electron microscopes or UHV-systems. They are ideal as a roughing pump for turbomolecular pumps.

The specially developed G version of the pumps is designed for the transportation of traces of corrosive gases. This version of the ACP series is recommended for transfer chambers, process monitoring systems and ion beam applications. The CV version of the air-cooled ACP series has a water vapor capacity of up to 1,000 grams per hour. It is designed to avoid steam condensation in the pump block.

The SD version is designed for applications that require pumping of clean (dust-free) and non-corrosive gases.
Pfeiffer ACP 15
Pfeiffer ACP 28
Pfeiffer ACP 40

The G version pump is compatible with traces of corrosive gases.
Pfeiffer ACP 15G
Pfeiffer ACP 28G
Pfeiffer ACP 40G

The CV version is specially designed to avoid vapor condensation inside the pumping module.
Pfeiffer ACP 28CV
Pfeiffer ACP 40CV

Technical Specifications

Ambient temperature 12-40 °C | 53.6-104 °F | 285-313 K
Connection flange (in) DN 25 ISO-KF
Connection flange (out) DN 16 ISO-KF
Continuous inlet pressure, max. 1,013 hPa | 759.75 Torr | 1,013 mbar
Cooling method Air
Dimensions (L x W x H) 514 x 190 x 270 mm | 20.24 x 7.48 x 10.63 inch
Exhaust pressure, max. 1,200 hPa | 900 Torr | 1,200 mbar
Final pressure with gas ballast 3 · 10-1 hPa | 2.25 · 10-1 Torr | 3 · 10-1 mbar
Final pressure without gas ballast 5 · 10-2 hPa | 3.75 · 10-2 Torr | 5 · 10-2 mbar
Gas ballast Yes
Gas ballast flow 0.5 m³/h | 0.29 cfm | 8.33 l/min
Helium leakage rate, max. 5 · 10-8 hPa·l/s
Mains cable Yes, EU mains cable
Mains connection 110 – 230 V AC (±10%) 50/60 Hz
Max. pumping capacity of pure water vapor at 20°C 80 g/h
Motor type 1-ph motor
Power consumption at final pressure 450 W
Processes Light Duty Applications
Pumping speed 14 m³/h | 8.24 cfm | 233.33 l/min
Sound pressure level 63 dB(A)
Version Standard
Weight 23 kg | 50.71 lb

Pumping Curves



    • ISO-KF, welded bellows sealed


Noise Reduction

    • Exhaust silencers

    • Noise reduction covers




User Manual Data Sheet

For more documentation, please visit DigiVac’s folder.

Product Inquiry

Pfeiffer ACP 15 Multi-stage Root Pump | standard, single phase, manual gas ballast | V5SATSMGEF