Two-stage Rotary Vane Pumps - Pfeiffer Vacuum

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221SDMHEM
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Pascal 2021, SD version, 1-phase motor, 180–254 V, 50 Hz/60 Hz, CE/UL/CSA
Order number: 221SDMHEM

Flange (in) DN 25 ISO-KF
Flange (out) DN 25 ISO-KF
Mains cable Yes, EU power cable  
Mains requirement: voltage 50 Hz 180 – 254 V
Mains requirement: voltage 60 Hz 180 – 254 V
Motor version 1-ph motor
Operating fluid Mineral oil
Protection category IP43
Pumping speed at 50 Hz 18 m³/h
Pumping speed at 60 Hz 22 m³/h
Rated power 50 Hz 0.45 kW
Rated power 60 Hz 0.55 kW
Ultimate pressure 5 · 10-4 hPa | 3.75 · 10-4 Torr | 5 · 10-4 mbar
Ultimate pressure with gas ballast 1 · 10-2 hPa | 7.5 · 10-3 Torr | 1 · 10-2 mbar
Version Standard
Weight 28 kg | 61.73 lb

Ultimate pressure according to PNEUROP

Dimension-TIM-RS

L
291 mm

Characteristic-TIM-RS-3

Characteristic-TIM-RS-1

Characteristic-TIM-RS-2

File Type Language Date Filesize
Data sheet PDF EN 12-14-2018 ~ 693.1 KB
File Type Language Date Filesize
Maintenance Instruction Pascal Series 5-21 m³/h (103275MEN_04) PDF EN 09-20-2017 ~ 3.9 MB
Operating instructions Pascal Series 5-21 m3/h (103275OEN_12) PDF EN 09-20-2017 ~ 1 MB
Your local contact
Pfeiffer Vacuum Inc.
24 Trafalgar Square
NH 03063-1988 Nashua
USA

+1 (800) 248-8254
+1 (888) 658-7983
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