Main applications etanorm-rsy

  • Biofuels
  • Breweries
  • Building services
  • Chemical industry
  • Food and beverages
  • Heating / ventilation / air-condition
  • Industry engineering
  • Irrigation
  • Municipal waste water
  • Pressure boosting
  • Rawwater transport
  • Steel
  • Systems
  • Waste water
  • Water
  • Water supply
  • Watertreatment

Design etanorm-rsy

Horizontal volute casing pump in back pull-out design, single-stage, with ratings and dimensions to EN 733, radially split volute casing with integrally cast pump feet, replaceable casing wear rings, closed radial impeller with multiply curved vanes, single mechanical seal to EN 12756, double mechanical seal to EN 12756, drive-end bearings: rolling element bearings, pump-end bearings: plain bearings, with magnetless KSB SuPremE motor of efficiency class IE4/IE5 and PumpDrive variable speed system; ATEX-compliant version available

Application pump etanorm-rsy

Heat transfer systems, hot water recirculation

Drive pump etanorm-rsy

  • Drive: Surface-cooled KSB-IEC three-phase squirrel cage motor
    Winding: up to 2.2 kW 220-240 V/380-420 V for 3 kW and above 380-420 V/660-725 V
  • Design: IM B3
  • Enclosure: IP 55
  • Thermal class: F with temperature sensors:
    3 PTC thermistors
  • Operating mode: continuous operation S1

Desing Details pump etanorm-rsy

Horizontal volute casing pump, single-stage (pump size 125-500/2 double-stage), with ratings and main dimensions to EN 733 up to DN 200 / extension Etanorm-RSY, with bearing bracket, in back pull-out design.

Volute casing and impeller or casing cover with replaceable wear rings.

Volute casing with integrally cast pump feet.


Coupling side: grease-lubricated deep-groove ball bearing

Impeller side: Product-lubricated carbon bearing
Option: product–lubricated SiC/SiC bearing

Shaft Seal

Mechanical seal to EN 12756.
Option: double-acting mechanical seal in tandem arrangement

Materials pump etanorm rsy

  • Volute casing: Nodular cast iron JS1025 2)
  • Discharge cover: Nodular cast iron JS1030 3)
  • Shaft: Chrome steel 1.4021.05 HRC 55/1.4057
  • Impeller: Grey cast iron JL1040 4)
  • Wear rings: Grey cast iron GG
  • Bearing bracket: Nodular cast iron JS1030

Overview of technical data etanorm rsy

Q (50Hz)50.0 – 2,280.0 (m³/h)
H (50Hz)12.0 – 90.0 (m)
Type of bearingRolling element and plain bearings
Casing partitionRadially split
Drive frequency50 Hz /60 Hz
Type of driveElectric motor
Drive voltageLow voltage
No. of impeller entriesSingle entry
Impeller material (EN standard)JL1040, GJL-250, 1.4408
Type of installationLong-coupled
Type of couplingDirect
Type of lubricationGrease / Product lubrication
Max. permissible fluid temperature350.0 (°C)
Nozzle positionEnd suction
Maximum operating pressurePN 16
Pull-out designYes
Pump set locationDry installed
Shaft material (EN standard)1.4057.05
Suction characteristicsNon-priming
Type of casingVolute casing
Type of impellerRadial
Type of connectionFlange
Casing material (EN standard)GJS-400-18-LT, JS1025
eClass assignment36410100, 36410000, 36410101
Installation positionHorizontal
Shaft seal typeMechanical seal
Main applicationsIndustry and process engineering
Casing materialNodular cast iron
Maximum discharge-side pressure16.0 (bar)
Type of installationStationary
Maximum speed of rotation1750.0 (min)