nES - rotary Vane

The Edwards nES single stage series represents the next advancement in oil sealed rotary vane vacuum pumps for use in a wide of range industries and applications, even for use in explosive environments with the EX version. Offering high reliability, low life cycle cost and proven performance, the nES series provides an ideal solution to suit a broad range of requirements.

Proven performance

Delivers 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 in design

nES sizes

  • nES
  • nES ATEX

Peak Pumping speed

Ultimate vacuum

without gas ballast 

with gas ballast 

Motor Power

Noise Level

Max water vapour pumping rate

m³/h

mbar

mbar

kW

dB(A)

Kg/h

nES40

38.5

0.5

1.5

1.5

58

0.76

nES65

54.0

0.5

1.5

2.2

60

1.0

nES100

87.5

0.5

1.5

3.0

61

1.60

nES200

170

0.08

0.7

5.5

69

3.4

nES300

240

0.08

0.7

7.5

72

1.3

nES470

400

0.08

0.7

11

72

5.0

nES570

470

0.08

0.7

11

75

7.5

nES630

640

0.08

0.7

18.5

72

17

nES750

755

0.08

0.7

18.5

75

24

Peak Pumping speed

Ultimate vacuum

without gas ballast 

with gas ballast 

Motor Power

Noise Level

Max water vapour pumping rate

m³/h

mbar

mbar

kW

dB(A)

Kg/h

nES40ex

38.5

0.5

1.5

1.5

58

0.76

nES65ex

54.0

0.5

1.5

2.2

60

1.0

nES100ex

87.5

0.5

1.5

3.0

61

1.60

nES200ex

170

0.15

0.7

5.5

69

3.4

nES300ex

240

0.15

0.7

7.5

72

1.3

nES630ex

640

0.15

0.7

18.5

72

17

 

Edwards nES single EX series rotary vane pumps have been specifically designed to be capable of handling gases from a potentially explosive atmosphere and to operate in environments where a potentially explosive atmosphere can be present. Pumps have been certified under the ATEX directive 2014/34/EU.

Product Features

DRIVE TECHNOLOGY

Motors are highly efficient meeting latest efficiency standard and are in accordance with UL and European standards.

Motors are certified to ATEX directive 2014/34/EU. 

EFFICIENT COOLING

Enables low operating temperatures and increased oil life improving reliability.

OIL RETURN SYSTEM

The optimised oil return and separation system supports stable pumping performance and  minimises oil loss. Use of Edwards Ultragrade oil enables optimum pumping performance, and effective time between service.

INTERNAL MECHANISM

Designed to provide optimum pumping performance without fluctuation in vacuum levels.

GAS BALLAST FACILITY

The gas ballast mechanism facilitates
effective pumping and management
of condensable vapours.

INSTALLATION FLEXIBILITY

Pumps are compatible with both ISO and G connections, providing flexibility in installation.

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