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Small Liquid Ring Vacuum Pumps

NES is proud to offer a complete line of close-coupled liquid ring vacuum pumps to serve the industrial market. These pumps provide twice the efficiency per horsepower when compared to water jet pumps, and can easily digest debris, condensables, and othercontaminents that are not appropriate for rotory vane pumps. Liquid ring technology utilizes a liquid seal to perform compression and produce a vacuum. Because liquid is used to perform mechanical compression these pumps have no internal contacting parts reducing internal mechanical wear. These pumps are available in cast iron, bronze, and stainless steel.


 
Air Capacity [CFM]
 
Model
HP
15" Hg
20 " Hg
25" Hg
27" Hg
28" Hg
Weight
IO&M Manual
N-A5

1

10
10
10
8
5
45
Spec Download
N-A10
1-1/2
15
15
15
13
10
55
N-A15
2
22
22
20
16
13
60
N-A20
3
34
34
32
26
18
80
N-A75
5
72
74
72
65
45
180
Spec Download
N-A100
7-1/2
102
102
100
86
60
195
N-A130
10
125
125
118
95
65
250
N-A200
15
230
230
220
190
135
560
Spec Download
N-A300
20
280
280
245
200
160
600

 

   
 
 
  recommended by vacuum-guide.com

 

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