GENERAL DATA
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
Construction
- 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
Specification
| Flow | Max 520m3/h |
| Head | Max 160 m |
| Working pressure | Max 16 bar |
| Inlet pressure | Max 6 bar |
| Power | Max 160 kW |
| Liquid temperature | -15°C – 110°C |
| Inlet and outlet diameter | |
| Inlet diameter | DN50-DN200 |
| Outlet diameter | DN32-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)
Features - 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.