Definition of model
NISO 100-65-200/30
NISO : End suction centrifugal pump
100 : Suction diameter (mm)
65 : Drainage diameter (mm)
200 : Nominal diameter (mm) of impeller
30 : Motor power (kW)

Min inlet pressure
Min inlet pressure depends on NPSH + 0.5 m safety margin + gasified pressure, It should be re-calcuated the inlet pressure if one of the following happens

  • The liquid is more warm
  • The flow exceeds the nominate value
  • Suction distance is very long or inlet pipe is very long
  • System pressure is too little
  • Inlet pressure is low

Typical application

  • Clean, thin, non-corrosive, non-flammable, or non-explosive liquid without grain or fiber
  • Water supply system
  • Heat, air condition system
  • Booster, constant pressure water supply
  • Firefighting, spliting system
  • Industry transfering drainage system


  • Non-sel priming, single stage, single suction, horizontal, axial suction and radial discharge, pu, p body is fixed by base
  • Use bearing cradle, which can orintate bearing, prevent from radical vibration, improve the rigidity of rotary part
  • Compacted shaft, use deep grove grease lubricated roller bearing
  • Connected pump and motor with semi-flexible coupling
  • Use standard wearable mechanical seal
  • TEFC motor, size complies to IEC standard, installation type B3
  • The dimensions is conform to ISO 2858


FlowMax 520m3/h
HeadMax 160 m
Working pressure Max 16 bar
Inlet pressureMax 6 bar
PowerMax 160 kW
Liquid temperature-15°C – 110°C
Inlet and outlet diameter
Inlet diameterDN50-DN200
Outlet diameterDN32-DN150

Curve conditions

  • Curve tolerance is according to ISO9906, Annex A
  • All curves are based on the measured value of constant motor speed 2900rpm, 1450rpm or 1480rpm
  • The measurement were made with airless water at temperature of 20 °C . The curves apply to a kinematic viscosity of 1mm2/2 (1 cst)

  • Back-pull out design, without having to disturb pump body and pipelines when servicing
  • All the models only use 4 kinds of pump shaft and bearing cover, make parts exchangeable
  • Impeller is optimum design, inlet is enlarged, no whirlpool, deduct the water pump NPSH efficienctly, which makes pump work stable with little noise
  • Casing and casing cover use wearing neck structure, which makes pump easy to maintain, makes parts work longer. The replaceable seal ring, makes pump work efficienctly in a long time.

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