DWS 650 CPumping speed 650 m³/hUltimate pressure 0.05 mbar
S-VSA TWISTER 800
Outdated product This model is no longer part of the manufacturer's current range.
Current alternative: S-SVT 600
The Elmo Rietschle S-VSA TWISTER 800 is a dry-running screw vacuum pump: pumping speed 650 / 720 m³/h (50 / 60 Hz), ultimate pressure 0.05 mbar (abs.), 18.5 kW (50 Hz). The model is no longer part of the current Elmo Rietschle range. For pumps in service, Ehrler & Beck supports you with service, spare parts and the selection of a current model.
Request a quote for this product Read more
- Pumping speed 650 m³/h 50 Hz 720 m³/h 60 Hz
- Ultimate pressure 0.05 mbar
- Rated motor power 18.5 kW 50 Hz 22 kW 60 Hz
Elmo Rietschle S-VSA TWISTER 800 – outdated model
The S-VSA TWISTER 800 is no longer part of the current Elmo Rietschle range; the manufacturer names no successor. Among the current Elmo Rietschle screw pumps in our range, the S-SVT 600 comes closest to it. The screws run without contact; the pump is water-cooled, and only the gear contains oil. Elmo Rietschle cited easy servicing and corrosion-resistant versions with various coatings, and recommended the range for solvent recovery and drying processes. Elmo Rietschle listed it in version 800 (20). The technical data are taken from the Elmo Rietschle catalogue “S series” (2010 edition). We do not list order numbers for this model; the type designation on the data plate is what counts. For pumps in service, Ehrler & Beck supports you with service, spare parts and the selection of a current model.| Pumping speed 50Hz | 650 |
|---|---|
| Pumping speed 60Hz | 720 |
| Ultimate pressure | 0.05 |
| Rated motor power 50Hz | 18.5 |
| Rated motor power 60Hz | 22 |
| Weight | 810 |
| Length | 173 |
| Width | 86.7 |
| Height | 80.7 |
| Inlet connection flange | DN 100 |
| Outlet connection flange | DN 65 |
| Noise level | 81 dB(A) |
| Cooling method | Water cooling |
| Oil type | Oil-free |
Additional technical data
| Technical data | Value |
|---|---|
| Design | Dry-running screw vacuum pump |
| Status | Outdated model – no longer in the current Elmo Rietschle range (as of 30 Oct 2026) |
| Pumping speed | 650 m³/h (50 Hz) / 720 m³/h (60 Hz) |
| Ultimate pressure | 0.05 mbar (abs.) |
| Motor power | 18.5 kW (50 Hz) / 22 kW (60 Hz) |
| Motor version | 3~ 230/400 V (50 Hz) / 380/660 V (60 Hz) |
| Rotational speed | 2850 min⁻¹ (50 Hz) / 3450 min⁻¹ (60 Hz) |
| Mean sound pressure level | 81 dB(A) |
| Max. weight | 810 kg |
| Oil capacity (gear) | 4.0 l |
| Cooling water consumption | 600 l/h |
| Dimensions (L × W × H) | 1730 × 867 × 807 mm |
| Flanges (inlet / outlet, DIN 2501) | DN 100 / DN 65 PN 10 |
| Accessories according to the catalogue | Flushing unit, bleeding valve, control box, vacuum switch / vacuum gauge, butterfly valve, condenser |
| Data source | Elmo Rietschle catalogue “S series”, 2010 edition |
DWS 650 CPumping speed 650 m³/hUltimate pressure 0.05 mbar