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Advantages
- AC pumps with electrical quick connection
- All components that come in contact with the fluid comply with the latest directives.
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Technical Features
Design
Glandless circulator with threaded connection.
Application
- Domestic hot water circulation systems in building services and industry.
Typekey
Example: Wilo-Star-Z 20/1 Star Standard pump Z Circulation pump 20/ Nominal connection diameter 1 Nominal delivery head [m] Technical data
- Constant speed or, for Star-Z…-3, three selectable speed stages
- Fluid temperature:
- Drinking water up to 3.21 mmol/l (18 °dH): max. +65 °C, in short-time duty (2 h) up to +70 °C
- Mains connection 1~230 V, 50 Hz
- Protection class IP44
- Nominal diameter G1, G1¼, G1½
- Max. operating pressure 10 bar
Equipment/function
Operating modes
- Speed stage switching (Star-Z…-3 only)
Manual functions
- Setting of the speed stages (1 speed stage, 3 speed stages with Star-Z…-3 pumps)
Equipment
- Wrench attachment point on the pump body (Star-Z 25 only)
- Cable inlet possible from both sides
- quick connection with spring clips
- Blocking-current proof motor
Materials
- Pump housing: Bronze
- Impeller: Plastic
- Shaft: Oxide ceramic
- Bearing: Carbon, synthetic resin impregnated
Accessories
- Screwed connections
- Adapter fittings
- Thermal insulation shells for Star-Z 20, 25
- Special brass inserted parts for screw-end pumps: Male thread/inner soldering connection
- Wilo-S1R-h switchgear plug-in module for Star-Z 20/1, Z 25/2 EM (single-phase version)
- Wilo-SK 601N switchgear in connection with Wilo-SK 602N (as contactor) for Star-Z 25/2 DM (three-phase version)
- Wilo-SK 601N switchgear for timed On/Off switching for Star-Z 20, 25
- Downloads
