Nikkiso Clean Energy & Industrial Gases Group

Products & Services

Cryogenic Pumps

Centrifugal Pump

The AC/TC-30 pumps are single-stage or multiple-stage, close coupled pumps and are mounted directly on the drive motor. Our close coupled type pump assembly has fewer moving parts than hydraulic, gearbox, or belt box driven pumps. As a result, they have inherently higher efficiencies and lower maintenance.  Also, the pump features either aluminum housings or all bronze construction with pump housings, impeller, and inducer.  Mechanical, gas riding, and labyrinth style shaft seals are available, among others.

Features & Benefits

  • Close coupled design provides operations at high efficiencies, fewer moving parts & lower maintenance costs
  • Minimum recirculation wear rings reduce maintenance requirements and improve efficiencies
  • Shaft seal design is state-of-the-art and prolongs life without leakage (mechanical, gas-riding or labyrinth)
  • VFD compatibility allows for multiple operating speeds


  • Trailer Loading/Off-loading
  • Liquid Storage Transfer
  • Process Plant
  • Tank Car Unloading

Liquids Pumped

  • Nitrogen
  • Oxygen
  • Argon
  • Methane
  • Carbon Dioxide
  • Nitrous Oxide

AC/TC-30 Table

Flow Rate Max.1000³/h (4400 gpm)
Head max.600m (1,970 ft)
Fluid Temperature
-130℃ to +450℃ (-201 to 842°F)
Viscosity Max.500mPa·s
Design Pressure:20MPa (2900 psig)
Casing Material

Austenitic Stainless steel (304SS, 316SS, etc.)
Hastelloy*1 C/B Equivalent Alloy
Monel*2, others Equivalent Alloy

Motor power range0.75 to 250kW
Ex-ProtectionVarious international explosion-protection (ATEX,IEC,CSA,TRCU, etc.) CE marking


  • Pump & TEFC electrical motor
  • Long life CFS mechanical seal
  • Motor & seal purge ports

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