Edwards nES40Pumping speed 38.5 m³/hUltimate pressure 0.5 mbar
Edwards nES220 3Ph 200–240 V & 380–415 V ±10 % 50 Hz; 200–230 V & 380–400 V & 440–460 V ±10 % 60 Hz, wide-range motor, air-cooled
The Edwards nES220 is a single-stage oil-sealed rotary vane vacuum pump with a pumping speed of 179 m³/h at 50 Hz (214 m³/h at 60 Hz) and an ultimate pressure of 0.08 mbar without gas ballast. The nES series stands for stable vacuum performance, low maintenance effort and low life-cycle costs. Ehrler & Beck advises on selection, accessories and service.
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- Pumping speed 179 m³/h 50 Hz 214 m³/h 60 Hz
- Ultimate pressure 0.08 mbar
- Rated motor power 4.4 kW 50 Hz 5.5 kW 60 Hz
| Variant | Part number |
|---|---|
| 3Ph 200–240 V & 380–415 V ±10 % 50 Hz; 200–230 V & 380–400 V & 440–460 V ±10 % 60 Hz, wide-range motor, air-cooled (selected) | A35554950 |
| 3Ph 200–240 V & 380–415 V ±10 % 50 Hz; 200–230 V & 380–400 V & 440–460 V ±10 % 60 Hz, air-cooled (Asia) | A35574950 |
Edwards nES220 – single-stage rotary vane vacuum pump of the nES series
The nES220 belongs to the nES series, Edwards' new generation of single-stage oil-sealed rotary vane pumps for a wide range of industries and applications. It delivers 179 m³/h at 50 Hz and 214 m³/h at 60 Hz and reaches an ultimate pressure of 0.08 mbar without gas ballast, 0.7 mbar with gas ballast. The motor power is 4.4 kW at 50 Hz and 5.5 kW at 60 Hz. The pump weighs around 180 kg and measures about 984 × 606 × 407 mm (L × W × H).Features of the nES series
- Stable vacuum performance without pressure fluctuations thanks to optimised oil distribution; high pumping speed at low pressures
- Low life-cycle costs thanks to efficiently cooled motors, low pump temperature and low maintenance effort
- Optimised oil return and separation system with integrated oil mist filters for low oil losses
- Gas ballast for pumping condensable vapours
- Low noise and vibration levels
- Connections either to ISO or with G thread
- ULTRAGRADE Performance 70 for optimum pumping performance; ULTRAGRADE Endurance Extend 110 for longer service intervals
Versions of the Edwards nES220
The nES220 is available in 2 versions (part numbers A35554950, A35574950). The market details (Asia) come from the Edwards brochure and the Edwards webshop; versions without a market detail apply worldwide.Advice and service
Ehrler & Beck supports you in selection, supplies oil, accessories and spare parts and carries out maintenance and repair.| Pumping speed 50Hz | 179 |
|---|---|
| Pumping speed 60Hz | 214 |
| Ultimate pressure | 0.08 |
| Rated motor power 50Hz | 4.4 |
| Rated motor power 60Hz | 5.5 |
| Weight | 180 |
| Length | 98.4 |
| Width | 60.6 |
| Height | 40.7 |
| Inlet connection flange | DN 63 ISO-F / G 2" |
| Outlet connection flange | DN 63 ISO-F / G 2" |
| Noise level | 69 dB(A) |
| Cooling method | Air cooling |
| Oil type | Ultragrade 70, ULTRAGRADE Endurance Extend 110 |
Additional technical data
| Technical data | Value |
|---|---|
| Design | Single-stage oil-sealed rotary vane vacuum pump, air-cooled |
| Version | 3Ph 200–240 V & 380–415 V ±10 % 50 Hz; 200–230 V & 380–400 V & 440–460 V ±10 % 60 Hz, wide-range motor, air-cooled |
| Pumping speed 50 Hz / 60 Hz | 179 / 214 m³/h |
| Max. pumping capacity (displacement) 50 Hz / 60 Hz | 200 / 240 m³/h |
| Ultimate pressure without gas ballast | 0.08 mbar (with mineral oil; with synthetic oil 0.15 mbar) |
| Ultimate pressure with gas ballast | 0.7 mbar |
| Max. water vapour pumping capacity 50 Hz / 60 Hz | 1.3 / 1.8 kg/h |
| Motor power 50 Hz / 60 Hz | 4.4 / 5.5 kW |
| Motor speed 50 Hz / 60 Hz | 1500 / 1800 min⁻¹ |
| Sound pressure level 50 Hz / 60 Hz | 69 / 73 dB(A) |
| Weight (approx.) | 180 kg |
| Dimensions L × W × H (approx.) | 984 × 606 × 407 mm |
| Connections, inlet/outlet side | ISO63 (63 ISO-F) or G 2" |
| Max. permissible outlet pressure | 1.15 bar absolute |
| Oil | ULTRAGRADE Performance 70 or ULTRAGRADE Endurance Extend 110 (longer service intervals) |
| Oil filling | 7.5 l |
| Ambient temperature | 12 to 40 °C |
| Motor protection class | IP55 |
| Product name | Part number |
|---|---|
| ULTRAGRADE Performance 70, 5 litres | H11028016 |
| ULTRAGRADE Performance 70, 209 litres | H11028017 |
| Product name | Part number |
|---|---|
| Temperature switch | A35104200 |
| Temperature sensor PT100 | A35900380 |
| Oil level switch (together with end plate GK6542106) | A35104205 |
| End plate with accessory holes (only if required) | GK6542106 |
| Pressure gauge for the outlet filter | A35104220 |
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