Edwards nES40 ExPumping speed 38.5 m³/hUltimate pressure 0.5 mbar
Edwards nES630 Ex A35818940 3Ph 400 V or 690 V ±10 %, 50 Hz only, ATEX category 2 inside / category 3 outside
The Edwards nES630 Ex is the ATEX version of the single-stage rotary vane pump nES630 with a pumping speed of 640 m³/h at 50 Hz and an ultimate pressure of 0.08 mbar. Internally it is approved for category 2, externally for category 3. Ehrler & Beck advises on selection and service.
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- Pumping speed 640 m³/h 50 Hz
- Ultimate pressure 0.08 mbar
| Variant | Part number |
|---|---|
| 3Ph 400 V or 690 V ±10 %, 50 Hz only, ATEX category 2 inside / category 3 outside (selected) | A35818940 |
Edwards nES630 Ex – ATEX rotary vane pump for high pumping speeds
The nES630 Ex is the explosion-proof version of the nES630. It carries the marking Ex II (i) 2 G b IIB+H2 T3 / (o) 3 GD IIC T3 (T150 °C) (10 °C < Ta < 40 °C) X: internally (in contact with the process gas) category 2 for explosion group IIB including hydrogen, externally category 3 for gases and dusts. The pump delivers 640 m³/h at 50 Hz, reaches 0.08 mbar without gas ballast and, with two gas ballast valves, tolerates up to 60 mbar of water vapour. It is designed for 400 V or 690 V at 50 Hz and weighs 730 kg with oil.Advice and service
Ehrler & Beck supports you in selection and ATEX-compliant sizing and carries out maintenance and repair.| Pumping speed 50Hz | 640 |
|---|---|
| Ultimate pressure | 0.08 |
| Weight | 730 |
| Inlet connection flange | DN100 |
| Outlet connection flange | DN100 |
| Noise level | 72 dB(A) |
| Cooling method | Air cooling |
| Oil type | Ultragrade 70 |
Convert units: vacuum and pressure units · Nm³/h to m³/h
Additional technical data
| Technical data | Value |
|---|---|
| Design | Single-stage oil-sealed rotary vane vacuum pump, ATEX |
| ATEX marking | Ex II (i) 2 G b IIB+H2 T3 / (o) 3 GD IIC T3 (T150 °C) (10 °C < Ta < 40 °C) X |
| Pumping speed (DIN 28400) 50 Hz | 640 m³/h |
| Ultimate pressure without gas ballast | 0.08 mbar |
| Ultimate pressure with 1 / 2 gas ballast valves | 0.7 / 2 mbar |
| Water vapour tolerance with 1 / 2 gas ballast valves | 40 / 60 mbar |
| Max. water vapour load with 1 / 2 gas ballast valves | 17 / 26 kg/h |
| Motor voltage | 400 and 690 V ±10 %, 50 Hz only |
| Rotational speed | 820 min⁻¹ |
| Mean sound pressure level | 72 dB(A) |
| Protection class / insulation class | IP54 / F |
| Weight (with oil) | 730 kg |
| Oil filling (min./max.) | 20 / 23 l |
| Connections | DN100 inlet and outlet side |
| Temperature switch (pump) | yes |
Edwards nES40 ExPumping speed 38.5 m³/hUltimate pressure 0.5 mbarEdwards nES65 ExPumping speed 54 m³/hUltimate pressure 0.5 mbarEdwards nES100 ExPumping speed 87.5 m³/hUltimate pressure 0.5 mbarEdwards nES300 ExPumping speed 240 m³/hUltimate pressure 0.15 mbar
