Vacuums

nES Single Stage EX Series Rotary Vane Pumps EXplosive Environments

nES Single Stage EX Series Rotary Vane Pumps EXplosive Environments
  • 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

APPLICATIONS

The nES single stage EX series pumps are suitable for use in a broad range of applications where 

protection in explosive environments is required.

Some applications areas where an appropriate level of protection is required:

•   Chemical

•   Pharmaceutical

•   Sterilizing with ethylene oxide

•   Recovery of air conditioning gases

•   Degassing of power plant alternator oil

•   Automotive

•   Gas vapour recovery

•   Gas bottle filling


nES Single Stage EX Series Rotary Vane Pumps EXplosive Environments


Units nES40ex nES65ex nES100ex nES200ex nES300ex nES630ex
Maximum Displacement 50Hz
Maximum Displacement 60Hz
m3h-1 / cfm 44.0 / 25.9 59.0 / 34.8 98.0 / 57.4 180 / 106 280 / 165 700 / 412
m3h-1 / cfm 53.0 / 31.2 71.0 / 41.8 117 / 68.9 220 / 130 340 / 200 840 / 494
Pumping Speed (50 Hz) m3h-1 / cfm 38.5 /22.7 54.0 /31.8 87.5 / 51.5 170 / 100 240 / 141 640 / 377
Pumping Speed (60 Hz) m3h-1 / cfm 47.0 /27.7 64.0 /37.7 105 / 61.8 200 /118 290 / 171 755 / 444
Ultimate vacuum (total pressure) no gas ballast mbar / torr 0.5 / 0.4 0.5 / 0.4 0.5 / 0.4 0.15 / 0.13 0.15 / 0.13 0.15 / 0.13
Ultimate vacuum (total pressure) 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
Inlet Connection ISO / ANSI DN40 / 1"1/2 ANSI DN40 / 1"1/2 ANSI DN40 / 1"1/2 ANSI DN50 / ANSI 2” DN50 / ANSI 2” DN100 / 4" ANSI
Outlet Connection ISO / ANSI DN40 / 1"1/2 ANSI DN40 / 1"1/2 ANSI DN40 / 1"1/2 ANSI DN50 / ANSI 2” DN50 / ANSI 2” DN100 / 4" ANSI
Max permitted outlet pressure bar gauge 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 17 / 18
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 24 / 25
Dimensions (L, W, H) mm 686 / 356 / 303 748 / 386 / 349 810 / 434 / 319 1084 / 535 / 435 1143 / 573 / 450 1566 / 989 / 740
Weight kg / lb 67 / 148 86 / 190 104 / 230 142 / 313 244 / 539 695 / 1534
Motor Protection rating
IP55 IP55 IP55 IP55 IP55 IP65
Motor Power (50Hz) kW / hp 1.5 / 2.0 2.2 / 3.0 3.0 / 5.0 5.5 / 8 7.5 / 10 18.5 / 26
Motor Power (60Hz) kW / hp 1.8 / 3.0 2.6 / 4.0 3.6 / 6.0 6.6 / 10 9 / 13 21 / 30
Noise level (50 Hz) dB(A) 58 60 61 69 72 72
Noise level (60 Hz) dB(A) 60 64 64 73 76 75
Oil Refill Capacity
Recommended oil
litre 1 2 2 5 - 9 8.5 – 11.5 20 - 23
Ultragrade Endurance Extend 110