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drinkwater pomp

Rodelta NS

The pump type NS is a vertical overhung, flexible coupled pump. The hydraulics comply with and exceed the hydraulic design parameters stated in EN733 (ISO 2858). These pumps are suitable of clean or slightly contaminated liquids. For heads above 45m at 1450rpm a number of sizes are available with a second stage, and include a diffuser to gently guide the flow from the first stage to the second. This design is available with bearing housing and spacer coupling.

For alternative specifications contact us.

  • district heatingDistrict Heating
  • Drinking waterDrinking Water
  • IrrigationIrrigation
  • Wast WaterWast Water
  • Water treatmentWater Treatment

Rodelta NS


  • High efficiency – smooth suction entry
  • Well known for low NPSH required
  • Minimal flow distortion
  • Bottom suction side discharge
  • Renewable wear rings
  • Bearings grease lubricated
  • Mechanical seal acc. to EN12756
  • Discharge orientation variable
  • Water Industry coatings available


  • Delivery size up to 200mm
  • Capacity up to 2.200m3/hr
  • Head up to 90m per stage
  • Suitable for liquid Temperature: Up to 80ºC
  • Sealing Arrangement: Gland packing or with mechanical seals
  • Flanges Drilling Standard: Flanges can be as per BS EN/DIN/ANSI/ASA standard


  • Clean & slightly contaminated fluids (no large solids)
  • Cold and hot water, Cooling Water
  • Condensate
  • Water-Glycol mixtures, oil emulsions etc, Light Hydrocarbons


  • Municipal
  • Chemical & Petrochemical
  • Sugar processing
  • Agricultural
  • Water supply, Drainage
  • Power plants

Constructional features:

  • Discharge orientation variable
  • Back/top pull out
  • Bearings grease lubricated
  • Renewable wear rings
  • Compact build / Space saving design
  • Available as multistage and close coupled design (impeller mounted on drive shaft) named NSM
  • Availble in several material combinations. Cast iron, bornze, stainless steel, duplex

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  • Design standard EN 733 EN 733
  • Features Single casing, one stage, enclosed impeller.
  • Capacity @ BEP Upto 2200 m3/hr Upto 9600 Gpm
  • Head Upto 90 m Upto 295 feet
  • Temperature range -20 to 80 °C -4 to 176 °F
  • Discharge pressure Upto PN 10 Upto Class 125
  • Material (Casing/Impeller) Cast Iron, Bronze, SS, Duplex, Super Duplex
  • Nozzle Orientation (suc/dis) Bottom elbow suction / Side delivery(Vertical execution)
  • Standard Motor Sync. Speed 1000 / 1500 / 3000 rpm 1200 / 1800 / 3600 rpm
  • Options Gland packing / Mechanical Seal
  • Flange drilling standard BS EN/DIN/ANSI /ASA
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