Rio N / Rio Z N

Main applications

  • Building services
  • HVAC
  • Heat transfer, Cooling circuits
  • Heating / ventilation / air-condition
  • Industry engineering
  • Special processes

Technical data

Q max 76.0 m³/h
H max 4.0 m


Maintenance-free, glandless wet rotor pump, flanged or screw-ended, with three speed levels; in twin pump design (Rio Z) for standby operation with integrated swing check valve or, on option, peak load operation (parallel operation).


Hot water heating systems, heat recovery systems and cooling circuits in air-conditioning systems.

Further technical information about Rio N / Rio Z N

Overview of technical data

Q (50Hz) 0.0 – 76.0 (m³/h)
H (50Hz) 0.0 – 4.0 (m)
Type of bearing Plain bearings
Drive Electric motor
Drive frequency 50 Hz /60 Hz
Type of drive Electric motor
Drive voltage Low voltage
Connection to power supply 400 V, 3~
Impeller material (EN standard) POLYPROPYLEN
Type of installation In-line
Type of coupling None
Type of lubrication Product lubrication
Max. permissible fluid temperature 120.0 (°C)
Nozzle position In-line
Maximum operating pressure PN 10
Pump set location Dry installed
Shaft material (EN standard) X 46 CR 13
Suction characteristics Non-priming
Type of casing Volute casing
Type of impeller Closed / Radial
Type of connection Screw-ended, flange
UNSPSC classification 4015150300
Casing material (EN standard) EN-GJL-250
eClass assignment 36410105, 36410101, 36410100, 36410000
Installation position Horizontal or vertical
Shaft seal type Seal-less
Main applications Building services, Water
Casing material Cast iron
Maximum discharge-side pressure 10.0 (bar)
Type of installation Stationary
Maximum speed of rotation 2800.0 (1/min)