Offering high reliability, low life cycle cost and proven performance, the Edwards nES single stage series represents the next advance in oil sealed rotary vane vacuum pumps for use in a wide of range industries and applications.
The optimised oil return and separation system supports stable pumping performance and minimises oil loss.
Efficient cooled motors, optimised oil retention, low pump temperatures, high reliability and minimum maintenance provides excellent lifecycle cost compared to other single stage rotary vane pumps.
| Units | nES40 | nES65 | nES100 | nES200 | nES300 | |
| Maximum Displacement 50Hz | m3h-1 / cfm | 44.0/25.9 | 59.0/34.8 | 98.0/57.4 | 180/106 | 280/165 |
| Maximum Displacement 60Hz | m3h-1 / cfm | 53.0/31.2 | 71.0/41.8 | 117/68.9 | 230/130 | 340/200 |
| Pumping Speed (50 Hz) | m3h-1 / cfm | 38.5/22.7 | 54.0/31.8 | 87.5/51.5 | 170/100 | 240/141 |
| Pumping Speed (60Hz) | m3h-1 / cfm | 47.0/27.7 | 64.0/37.7 | 105/61.8 | 200/118 | 290/171 |
| Ultimate vacuum without gas ballast | mbar / torr | 0.5/0.4 | 0.5/0.4 | 0.5/0.4 | 0.08/0.06 | 0.08/0.06 |
| Ultimate vacuum with gas ballast | mbar / torr | 1.5/1.1 | 1.5/1.1 | 1.5/1.1 | 0.7/0.5 | 0.7/0.5 |
| Inlet connection | ISO / G | 40 ISO-F / G1 ¼ | 40 ISO-F / G1 ¼ | 40 ISO-F / G1 ¼ | 63 ISO-F / G2 | 63 ISO-F / G2 |
| Outlet connection | ISO / G | 40 ISO-F / G1 ¼ | 40 ISO-F / G1 ¼ | 40 ISO-F / G1 ¼ | 63 ISO-F / G2 | 63 ISO-F / G2 |
| Max permitted outlet pressure | bar (abs) | 1.15 abs | 1.15 abs | 1.15 abs | 1.15 abs | 1.15 abs |
| Max water vapour pumping rate (50Hz) | kgh-1 / lbh-1 | 0.76/0.80 | 1.0/1.1 | 1.60/1.69 | 3.4/3.6 | 1.3/1.4 |
| Max water vapour pumping rate (60Hz) | kgh-1 / lbh-1 | 0.90/0.95 | 1.25/1.32 | 1.70/1.80 | 5.4/5.7 | 1.8/1.9 |
| Dimensions (L,W,H) Approximate (tbc) | mm | 540/284/303 | 586/320/314 | 721/400/319 | 1002/535/415 | 1130/555/450 |
| Weight Approximate (tbc) | kg / lb | 67/148 | 86/190 | 104/230 | 142/313 | 244/539 |
| Motor protection rating | IP55 | IP55 | IP55 | IP55 | IP55 | |
| Motor power (50Hz) | kW / hp | 1.1/1.5 | 1.5/2.0 | 3.0/4.0 | 4.5/6.0 | 5.5/7.5 |
| Motor power (60Hz) | kW / hp | 1.5/2.0 | 1.8/3.0 | 3.6/5.0 | 5.5/7.5 | 6.6/10.0 |
| Cooling | air | air | air | air | air | |
| Cooling water flow (if applicable) | L / h | - | - | - | - | - |
| Noise level (50Hz) air/water | dB(A) | 58 | 60 | 61 | 69 | 72 |
| Noise level (60Hz) air/water | dB(A) | 60 | 64 | 64 | 73 | 76 |
| Oil refill capacity | litre | 1 | 2 | 2 | 5-9 | 8.5-11.5 |
| Recommended oil | Edwards ULTRAGRADE Performance 70 | |||||
| Units | nES470 | nES570 | nES630 | nES750 | |
| Maximum Displacement 50Hz | m3h-1 / cfm | 470/277 | 570/366 | 700/412 | 840/494 |
| Maximum Displacement 60Hz | m3h-1/ cfm | 570/366 | - | 840/494 | - |
| Pumping Speed (50Hz) | m3h-1 / cfm | 400/236 | 470/277 | 640/377 | 755/444 |
| Pumping Speed (60Hz) | m3h-1 / cfm | 470/277 | - | 755/444 | - |
| Ultimate vacuum without gas ballast | mbar / torr | 0.08/0.06 | 0.08/0.06 | 0.08/0.06 | 0.08/0.06 |
| Ultimate vacuum with gas ballast | mbar / torr | 0.7/0.5 | 0.7/0.5 | 0.7/0.5 | 0.7/0.5 |
| Inlet Connection | ISO-F / G | ISO100 / G3 | ISO100 / G3 | ISO100 | ISO100 |
| Outlet Connection | ISO-F / G | ISO100 / G3 | ISO100 / G3 | ISO100 | ISO100 |
| Max permitted outlet pressure | bar gauge | 1.15 abs | 1.15 abs | 1.15 abs | 1.15 abs |
| Max water vapour pumping rate (50Hz) | kgh-1 / lbh-1 | 5.0/5.3 | 7.5/8.0 | 17/18 | 24/25 |
| Max water vapour pumping rate (60Hz) | kgh-1 / lbh-1 | 7.5/8.0 | - | 24/25 | - |
| Dimensions (L, W, H) Approximate (tbc) | mm | 1305/863/733 | 1305/863/733 | 1566/989/740 | 1566/989/740 |
| Weight Approximate (tbc) | kg / lb | 480/1059 | 550/1214 | 760/1678 | 760/1678 |
| Motor protection rating | IP55 | IP55 | IP55 | IP55 | |
| Motor power (50Hz) | kW / hp | 11/15 | 11/15 | 18.5/26 | 18.5/26 |
| Motor power (60Hz) | kW / hp | 13.2/18 | - | 21/30 | - |
| Noise level (50 Hz) | dB(A) | 72 | 75 | 72 | 75 |
| Noise level (60 Hz) | dB(A) | 75 | - | 75 | - |
| Oil refill capacity | litre | 20 | 20 | 20-23 | 20-23 |
| Recommended oil | Edwards ULTRAGRADE Performance 70 | ||||
