Design
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).
Applications
Hot water heating systems, heat recovery systems and cooling circuits in air-conditioning systems.
Operating modes
▪ Different speed levels
Automatic functions
▪ Full motor protection with integrated trip electronics
(from size 25-70 motor protection to be provided by the
operator)
Overview of technical data
| 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~; 230 V, 1~ |
| Impeller material (EN standard) | POLYPROPYLEN |
| Type of installation | In- line |
| Type of coupling | None |
| Type of lubrication | Oil / Product lubrication |
| Max. permissible fluid temperature | 120 °C |
| Nozzle position | In- line |
| Maximum rated pressure (discharge) | 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 |
| Maximum head | 4, 00 m |
| Installation position | Horizontal or vertical |
| Shaft seal type | Seal- less |
| Main applications | Building services; Water |
| Casing material | Cast iron |
| Maximum discharge-side pressure | 10 bar |
| Type of installation | Stationary |
| Maximum flow rate | 76 m³/h |
| Maximum speed of rotation | 2. 800 1/min |
