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Pfeiffer Pascal 2021 | 13 CFM Rotary Vane Pump

Pascal 2021, SD version, 1-Phase motor, 90–132 V, 50 Hz/60 Hz, CE/UL/CSA

221SDMLAM| Description

The Pfeiffer Pascal 2021 | 13 CFM Rotary Vane Pump incorporates a direct drive motor, creating a highly effective, compact machine. An electrically-insulated fold-away handle is attached for facility while carrying. The anti-suck-back system ensures enhanced tightness of the pump during accidental or voluntary shutdowns. Additionally, the universal single-phase motor can be disassembled independently of the remainder of the pump, without the need to drain the oil case. With regard to the case, a vertical sight glass can be used to inspect the oil level easily while filling the tank, as well as during the operation of the pump. A gas ballast enables the pumping of condensable vapors.

The inlet and exhaust fittings on the Pfeiffer Adixen Pascal 2021 SD are standardized – both the inlet and outlet flanges utilize the DN 25 model. They are fitted vertically on the pump; however, they can be re-positioned onto the horizontal openings if required to do so by operating conditions. The main replacement parts for Adixen Pascal 2021 SD are likewise interchangeable. This enables faster assembly, disassembly, and replacement without altering the favorable performance of the pump. Various accessories can be utilized and incorporated to adapt the pump to meet the requirements of your application.

13 CFM rotary vane pump for pumping vapor |  Two Stage high-performance rotary vane pump with mineral oil

  • Single-Phase High Performance Rotary Vane Pump
  • Standardized DN 25 Inlet & Outlet Flanges
  • Pumping speed at 50 Hz: 18 m³/h | 10.59 cfm | 300 l/min
  • Anti-Suckback System For Enhanced Stability During Shutdowns
  • (PN): 221SDMLAM

The Pfeiffer  2021SD 2021 SD Dual Stage Rotary Vane Vacuum Pump is designed and manufactured to meet the demanding requirements of various industrial and scientific applications. Thanks to a very simple and highly reliable design, the Pfeiffer 2021SD 2021 SD dual stage rotary vane vacuum pump provides great performance with high pumping stability. Used for light gases, they produce low noise with minimal oil backstreaming, and have a long operating life. These Pfeiffer 2021SD 2021 SD vacuum pumps have a pumping speed displacement of 14.6 CFM. This Pfeiffer 2021SD 2021 SD dual stage rotary vane vacuum pump comes with manufacture warranty. Oil, parts and accessories for this pump are available on this website. We also offer rebuild and repair services for this and all Alcatel pumps, see below.

Pump Features

  • dual stage pump
  • universal motor 1 & 3 phase versions
  • replaceable shaft seal without dismantling 
  • less air contamination and low oil consumption
  • alignment pins on pump module
  • easy maintenance and long lasting 

Pfeiffer Vacuum manufactures some of the most widely-utilized varieties of advanced rotary vane used in a variety of industrial applications in the twenty-first century, including laboratory processes, chemical and process engineering, among others. These products are ideally utilized for the low-to-medium intensity vacuum range. Pfeiffer vacuum pumps are especially known for their durability and wide range of application.

A rotary vane pump functions as a displacement pump, creating a low-pulsation suction volume flow. Rotary vane pumps include an eccentrically-supported rotor with two rotating vanes, encased and revolving within a housing. The Pfeiffer Rotary Vane Pumps offered to our clients are oil-lubricated (wet-version pumps); these operating fluids help to enhance the insulation of pump components and ensure maximum durability and efficiency of the product.


We offer both single-stage and dual-stage Pfeiffer Rotary Vane Vacuum Pumps on our website. Single-stage pumps are the preferred choice for low-intensity vacuum applications, while dual-stage pumps are the recommended choices for the medium and upper intensity range of vacuum applications.


Technical Specifications

Connection flange (in) DN 25 ISO-KF
Connection flange (out) DN 25 ISO-KF
Pumping speed at 50 Hz 18 m³/h | 10.59 cfm | 300 l/min
Pumping speed at 60 Hz 22 m³/h | 12.95 cfm | 366.67 l/min
Final pressure 5 · 10-4 hPa | 3.75 · 10-4 Torr | 5 · 10-4 mbar
Final pressure with gas ballast 1 · 10-2 hPa | 7.5 · 10-3 Torr | 1 · 10-2 mbar
Final pressure without gas ballast 5 · 10-4 hPa | 3.75 · 10-4 Torr | 5 · 10-4 mbar
Motor type 1-ph motor
Mains connection: voltage 50 Hz 90 – 132 V
Mains connection: voltage 60 Hz 90 – 132 V
Mains cable Yes, US mains cable
Operating fluid Mineral oil
Rated power 50 Hz 0.45 kW
Rated power 60 Hz 0.55 kW
Protection degree IP43
Weight 28 kg | 61.73 lb

Ultimate pressure according to PNEUROP

Pump Curves



    • ISO-KF, welded bellows sealed


    • Oil/Operating fluid level monitoring

    • Pressure Sensors


    • Catalyzer traps

    • Cold traps

    • Condensate separators

    • Dust separators/Inlet particle filters

    • Oil mist eliminators

    • Oil return units from oil mist eliminators

    • Sorption traps


    • Gas ballast valves, magnetic

    • Isolation valves



User Manual Data SheetMaintenance Manual

For more documentation, please visit DigiVac’s folder.

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Pfeiffer Pascal 2021 SD | 13 CFM Rotary Vane Pump