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nES Single Stage Rotary Vane

nES Single Stage Rotary Vane

Primary vacuum

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.
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Superior performance

Deliver consistent pumping performance with excellent vacuum stability

High reliability

Designed to maximise process efficiency

Low lifecycle cost

Efficient cooled motors, optimised oil retention, low pump temperatures, high reliability and minimum maintenance

Compact and clean

Robust and compact design

A compact design with low maintenance

  • The nES series is both robust and compact in design.
  • Low noise levels and vibration minimises environmental impact.
  • Easy to maintain and high productivity.

Optimised oil return system

The optimised oil return and separation system supports stable pumping performance and minimises oil loss.

Low lifecycle cost

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.

Flexible and systemisation friendly

  • The nES range is available with boosters and combination kits to enable you to build a complete systemised ready-to-use unit.
  • Alternatively combination kits, together with the nES pump and EH mechanical booster, are available as a kit of parts that allows for easy on-site assembly.

Technical Specifications

Units nES40 nES65 nES100 nES200 nES300 nES470 nES570 nES630 nES750
Maximum Displacement 50Hz m3h-1 / cfm 44.0/25.9 59.0/34.8 98.0/57.4 180/106 280/165 470/277 570/366 700/412 840/494
Maximum Displacement 60Hz m3h-1 / cfm 53.0/31.2 71.0/41.8 117/68.9 230/130 340/200 570/366 – 840/494 –
Pumping Speed (50 Hz) m3h-1 / cfm 38.5/22.7 54.0/31.8 87.5/51.5 170/100 240/141 400/236 470/277 640/377 755/444
Pumping Speed (60Hz) m3h-1 / cfm 47.0/27.7 64.0/37.7 105/61.8 200/118 290/171 470/277 – 755/444 –
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 0.08/0.06 0.08/0.06 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 0.7/0.5 0.7/0.5 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 ISO100 / G3 ISO100 / G3 ISO100 ISO100
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 ISO100 / G3 ISO100 / G3 ISO100 ISO100
Max permitted outlet pressure bar (abs) 1.15 abs 1.15 abs 1.15 abs 1.15 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 5.0/5.3 7.5/8.0 17/18 24/25
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 7.5/8.0 – 24/25 –
Dimensions (L,W,H) Approximate (tbc) mm 540/284/303 586/320/314 721/400/319 1002/535/415 1130/555/450 1305/863/733 1305/863/733 1566/989/740 1566/989/740
Weight Approximate (tbc) kg / lb 67/148 86/190 104/230 142/313 244/539 480/1059 550/1214 760/1678 760/1678
Motor protection rating IP55 IP55 IP55 IP55 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 nov.15 nov.15 18.05.2026 18.05.2026
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 13.02.2018 – 21/30 –
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 72 75 72 75
Noise level (60Hz) air/water dB(A) 60 64 64 73 76 75 – 75 –
Oil refill capacity litre 1 2 2 05.sept 8.5-11.5 20 20 20-23 20-23
Recommended oil Edwards ULTRAGRADE Performance 70

+41 (0)32 926 26 06
info@plasmadiam.com
Jambe-Ducommun 19 – 2400 Le Locle

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