Edwards E2S45Pumping speed 42 m³/hUltimate pressure 3 × 10-3 mbar
Edwards E2S85 3Ph 220/230/380/400/415 V 50 Hz, 230/460 V 60 Hz, IE4 (Europe/USA/China)
The Edwards E2S85 is a two-stage oil-sealed rotary vane vacuum pump with a pumping speed of 79 m³/h at 50 Hz (95 m³/h at 60 Hz) and an ultimate pressure of 3 × 10⁻³ mbar. The air-cooled E2S series is designed for standard applications in fine vacuum and, thanks to its two-stage gas ballast, also tolerates vapours. Ehrler & Beck advises on selection, accessories and service.
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- Pumping speed 79 m³/h 50 Hz 95 m³/h 60 Hz
- Ultimate pressure 3 × 10-3 mbar
- Rated motor power 2.2 kW 50 Hz 2.6 kW 60 Hz
| Variant | Part number |
|---|---|
| 3Ph 220/230/380/400/415 V 50 Hz, 230/460 V 60 Hz, IE4 (Europe/USA/China) (selected) | A35524950 |
| 3Ph 200 V 50 Hz, 200/380 V 60 Hz, IE3 (Asia: Japan/Korea) | A35524934 |
Edwards E2S85 – two-stage rotary vane vacuum pump for fine vacuum
The E2S85 belongs to the E2S series (E2S45, E2S65, E2S85), Edwards' modern two-stage rotary vane pumps for standard industrial applications. It delivers 79 m³/h at 50 Hz and 95 m³/h at 60 Hz (to DIN 28400) and reaches an ultimate pressure of 3 × 10⁻³ mbar without gas ballast. The gas ballast has two positions: in position 2 the pump tolerates up to 12.5 mbar of water vapour. The sound pressure level is 58 dB(A) without gas ballast.Features
- High pumping speed for short cycle times
- Hydro mode with improved vapour tolerance for humid applications
- Low noise level, also suitable for laboratory environments
- Built-in oil filter protects the pump mechanism against contamination
- Easy to operate and maintain; cleaning possible on site
- Optional: overtemperature protection and oil level monitoring
Typical applications
Edwards names vacuum degassing and drying, heat treatment and vacuum furnaces, vacuum insulation, plasma treatment (except O₂ plasma), leak detection, gas generation and handling, research and development and the backing of high vacuum pumps.Versions of the Edwards E2S85
The E2S85 comes in two motor versions: A35524950 for Europe, the USA and China (2.2 kW at 50 Hz, 2.6 kW at 60 Hz, IE4) and A35524934 for Japan and Korea (3 kW, 200 V, IE3). The market details come from the Edwards operating instructions.Advice and service
Ehrler & Beck supports you in selection, supplies oil, maintenance kits and accessories and carries out maintenance and repair.| Pumping speed 50Hz | 79 |
|---|---|
| Pumping speed 60Hz | 95 |
| Ultimate pressure | 3 × 10-3 |
| Rated motor power 50Hz | 2.2 |
| Rated motor power 60Hz | 2.6 |
| Motor efficiency class | IE4 |
| Weight | 92 |
| Length | 90.2 |
| Width | 24.4 |
| Height | 40.5 |
| Inlet connection flange | DN 40 ISO-KF (NW40) |
| Outlet connection flange | DN 25 ISO-KF (NW25) |
| Noise level | 58 dB(A) |
| Cooling method | Air cooling |
| Oil type | Ultragrade 70 |
Additional technical data
| Technical data | Value |
|---|---|
| Design | Two-stage oil-sealed rotary vane vacuum pump, air-cooled |
| Version | 3Ph 220/230/380/400/415 V 50 Hz, 230/460 V 60 Hz, IE4 (Europe/USA/China) |
| Pumping speed (DIN 28400) 50 Hz / 60 Hz | 79 / 95 m³/h |
| Nominal pumping speed (displacement) 50 Hz / 60 Hz | 92 / 110 m³/h |
| Ultimate pressure without gas ballast | 3 × 10⁻³ mbar |
| Ultimate pressure with gas ballast position 1 / 2 | 6 × 10⁻³ / 2 × 10⁻² mbar |
| Gas ballast flow, position 1 / 2 | 7.5 / 53 l/min |
| Water vapour tolerance (gas ballast position 2) | 12.5 mbar |
| Water vapour pumping capacity 50 Hz / 60 Hz | 732 / 878 g/h |
| Motor power 50 Hz / 60 Hz | 2.2 / 2.6 kW |
| Motor efficiency class | IE4 |
| Sound pressure level (1 m, ultimate pressure) | 58 dB(A) without, 60 dB(A) with gas ballast position 1 |
| Weight without oil | 92 kg |
| Dimensions L × W × H | 902 × 244 × 405 mm |
| Suction connection | NW40 (DN 40 ISO-KF) |
| Outlet | NW25 (DN 25 ISO-KF) |
| Gas ballast/purge gas connection | NW16 |
| Oil | ULTRAGRADE Performance 70 |
| Oil filling (min.–max.) | 4–5.2 l |
| Permissible ambient temperature | 10 to 40 °C |
| Max. permissible outlet pressure | 0.5 bar gauge |
| Motor protection class | IP55 |
| Product name | Part number |
|---|---|
| Major maintenance kit E2S85 (vanes, exhaust valves, springs, bushes, shaft seals, O-rings, gaskets) | ZK3002614152 |
| ULTRAGRADE Performance 70, 5 litres | H11028016 |
| ULTRAGRADE Performance 70, 209 litres | H11028017 |
| Gas ballast kit E2S 45/65/85 | GK6538488 |
| Gas ballast caps (10 pieces) | GM6539427 |
| Oil sight glass kit E2S 45/65/85 | GK6538266 |
| Coupling element E2S 45/65/85 (2 pieces) | GM6539758 |
| Inlet valve kit (anti-suck-back) E2S 45/65/85 | GK88851240 |
| Inlet port O-rings (10 pieces) | GM88836246 |
| Oil drain valve E2S 45/65/85 | G6545717 |
| Oil filter E2S 45/65/85 | Z6538377 |
| 3-phase IE4 motor 2.2 kW (CN/EU/US) | G6556650 |
| 3-phase IE3 motor 3 kW (Japan/Korea) | G6535559 |
| Product name | Part number |
|---|---|
| Outlet oil mist filter 60–90 m³/h | 1019090A20 |
| Electric gas ballast valve E2S (with solenoid valve) | A35924546 |
| Permanent gas ballast kit with NW16 | A35924545 |
| Oil level switch | A35924247 |
| Inlet dust filter ITF100 | A44202000 |
| High-capacity inlet dust filter ITM100 | A44302000 |
| Inlet catchpot ITO100 | A44102000 |
| Inlet chemical trap ITC100 | A44402000 |
Edwards E2S45Pumping speed 42 m³/hUltimate pressure 3 × 10-3 mbarEdwards E2S65Pumping speed 60 m³/hUltimate pressure 3 × 10-3 mbar