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  8. CombiLine WD 235 with Duo 65 two-stage rotary vane pump and Okta 250 roots pump

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PPS22508
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CombiLine WD 235 with Duo 65 two-stage rotary vane pump and Okta 250 roots pump
Order number: PPS22508

  • Okta 250 roots pump, standard version, operating fluid P3
  • Duo 65, rotary vane pump, standard version incl. OME MR oil mist filter (with oil return unit), operating fluid P3
  • Components built on a common base frame and internally connected by pipes
  • All motors according to efficiency class IE3
  • Various accessories are available for all current pumping stations
Backing pump Duo 65
Connection flange (in) DN 63 ISO-F
Connection flange (out) DN 40 ISO-KF
Final pressure 3 · 10-4 hPa | 2.25 · 10-4 Torr | 3 · 10-4 mbar
Final pressure without gas ballast 3 · 10-4 hPa | 2.25 · 10-4 Torr | 3 · 10-4 mbar
Input voltage(s) 400 V AC, 50 Hz // 460 V AC (±10 %), 60 Hz  
Mains frequency compatibility 50 Hz
60 Hz
Motor type 3-ph motor
Power consumption max. 2.25 kW
Pumping speed at 1 hPa, 50 Hz 245 m³/h | 144.21 cfm | 4,083.33 l/min
Pumping speed at 1 hPa, 60 Hz 290 m³/h | 170.69 cfm | 4,833.33 l/min
Roots pump Okta 250
Sound pressure level ≤ 75 dB(A)
Sound pressure level at 1 hPa ≤ 75 dB(A)
Typical final pressure with gas ballast 5 · 10-4 hPa | 3.75 · 10-4 Torr | 5 · 10-4 mbar
Weight: with motor 230 kg | 507.06 lb

Dimension-TIM-RS

Characteristic-TIM-RS-1

File Type Language Date Filesize
Data sheet PDF EN 06-03-2023 ~ 495.2 KB
File Type Language Date Filesize
Operating instructions OME 40 M/MR, OME 40 C/CR (PD0053BEN_D) PDF EN 04-09-2019 ~ 2.1 MB
Operating instructions Uno 35/Duo 35/Uno 65/Duo 65 (PK0168BEN_Q) PDF EN 02-25-2021 ~ 9.8 MB
Operating instructions Okta 250/Okta 250 M/Okta 500/Okta 500 M (PP0071BEN_X) PDF EN 05-02-2023 ~ 9.4 MB
Operating instructions CombiLine Pumping Stations WU/WD/WH (PW0200BEN_J) PDF EN 06-28-2017 ~ 1.9 MB
Your local contact
Pfeiffer Vacuum Inc.
24 Trafalgar Square
NH 03063-1988 Nashua
USA

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