Vacuums

nES Single Stage Rotary Vane Pumps

nES  Single Stage Rotary Vane Pumps
  • 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

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.

nES  Single Stage Rotary Vane Pumps

  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