Features/Product benefits
- AC pumps with quick electrical connection
- All plastic parts in contact with the fluid comply with KTW recommendations
Star-Z
Construction
Wet rotor circulation pumps with union connection
APPLICATION
Potable water circulation systems in industry and building technologies.
Hardware / function
Types of operation
- Gradual speed system (only in Star-Z... -3 products)
Manual functions
- Speed stage adjustment (1 Speed stage, 3 Speed stages in Star-Z -3/ pumps)
Hardware
- Mounting key location on pump body (only for Star-Z 25 products)
- Cable entry possible from both sides
- Quick connection option with spring terminals
- Blocking current resistant motor
Type coding
Example: | Wilo Star Z 20/1 |
Star | Standard pump |
Z | Circulation pump |
20/ | Nominal connection diameter |
1 | Nominal pumping head [m] |
-3 | 3 speed levels |
Technical data
- Fixed speed or three selectable speed levels in the Star-Z-3 model
- Fluid temperature:
- Drinking water up to 3.21 mmol/l (18 °dH): max. +65 °C, short-term operation (2 hours) up to +70 °C
- Mains connection 1~230 V, 50 Hz
- Protection class IP44
- Nominal diameter G1, G1¼, G1½
- Max. operating pressure 10 bar
Materials
- Pump body: Bronze
- Wheel: Plastic
- Shaft: Oxide ceramic
- Bed: Coal, synthetic resin impregnated
Scope of delivery
- Pump
- Gaskets
- Installation and user manual
Accessories
- Union connections
- Adapter parts
- Thermal insulation jacket for Star-Z 20, 25
- Special brass parts for union-connected pumps: External groove/Internal contact flap
- Wilo-S1R-h hot water plug-in module for Star-Z 20/1, Z 25/2 EM (alternating current version)
- For Wilo-Star-Z 25/2 DM (three-phase current version), Wilo-SK 602N (as contactor) and Wilo-SK 601N timed switchgear
- Wilo-SK 601N timed switchgear for time-dependent switching on and off of Star-Z 20, 25
| Select Model | : | Star-Z |
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