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NP Series Single Stage Dual Cone Liquid Ring Vacuum Pumps

A higher ratio value indicates that a given pump yields more CFM per unit HP.

Our 80-1160 HP NP Series vacuum pumps are designed to be drop-in replacements for Nash Classic Premier Series liquid ring vacuum pumps. These pumps boast split vacuum capability, made possible only by the center shroud design that creates vacuum operation with significant vacuum pressure differentials. The Premier Series allows for efficient operation across its entire capacity and vacuum scale. This, in addition to its rugged exterior, yields the perfect design for operation in harsh environments that require high capacity such as paper, power generation, mining, chemical, and petrochemical processes. NES offers models 2160, 2200, 2280, 2370, 2480, and 2620. Vacuum levels range from 4-24.5” Hg.

About NP Series

Models: 2160, 2200, 2280, 2370, 2480, 2620
Power range: 80 HP to 1160 HP
Capacity range: 3,500 to 23,200 CFM
Max vacuum: 24.5” HgV
MOC:

  • Body/Lobe SS ANSI 304L
  • Head CI/ASTM A48
  • Shaft Carbon Steel/AISI C-1045
  • Rotor Ductile Iron/ASTM A536
  • Cones Cast Iron/ASTM A48
  • Shaft Sealing PKG JC C1065
  • Bearing Bracket Cast Iron/ASTM A48
  • Gaskets Paper #67

  • Features

    Drop-in replacement for Nash Classic Premier Series.
    Efficient, rugged, quiet operation.
    Parts and repair kits readily available.
    Available as a bare pump or as a part of an engineered system.
    Available in Clockwise / Counter-Clockwise Rotations.
    Includes 2-year warranty against manufacturing defects.


    Applications

    Pulp and paper, Power Generation, Chemical Processing, Petrochemical Processing

    Download Spec Sheet

    NP Series Single Stage Dual Cone Liquid Ring Vacuum Pumps

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    Series Name Replaces Nash Classic Premier Series RPM CFM @ 12.5”HgV HP @ 12.5”HgV Max Operable Vacuum [“HgV] Inlet [in.] Outlet [in.] Seal Water Usage [GPM] Seal Water Connection Size [in.]
    NP 2160 2160 277 4150 140 24 10 FL 8 FL 56 106 1 ½ NPT
    300 4500 160 24.5
    327 5000 185 24.5
    360 5600 220 24.5
    400 6200 265 24.5
    429 6700 300 24.5
    450 7000 335 24.5
    NP 2200 2200 277 5000 180 24.5 10 FL 8 FL 60 114 1 ½ NPT
    300 5400 200 24.5
    327 6150 240 24.5
    360 6750 285 24.5
    400 7500 350 24.5
    429 8000 400 24.5
    450 8150 440 24.5
    600 9100 555 24.5
    NP 2280 2280 225 7000 230 24 12 FL 10 FL 64 120 2 NPT
    240 7550 260 24.5
    257 8100 290 24.5
    277 8800 330 24.5
    300 9550 380 24.5
    327 10400 440 24.5
    360 11250 535 24.5
    NP 2370 2370 200 8400 280 24.5 14 FL 12 FL 66 126 3 NPT
    215 9000 310 24.5
    225 9600 330 24.5
    240 10200 370 24.5
    257 10800 420 24.5
    277 11800 490 24.5
    300 12800 565 24.5
    NP 2480 2480 200 9800 320 24.5 14 FL 12 FL 84 160 3 NPT
    215 10600 380 24.5
    225 11100 395 24.5
    240 11800 440 24.5
    257 12700 465 24.5
    277 13800 570 24.5
    300 14800 660 24.5
    NP 2620 2620 180 14700 510 23 16 FL 14 FL 100 190 3 NPT
    200 16500 600 24
    215 17900 700 24
    225 18600 740 24
    240 20000 860 24
    257 21100 940 24
    277 22700 1080 24

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