Star-Z 20/7-3
Data sheet
Hydraulic data
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Maximum operating pressure PN10 bar
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Delivery head for Qmin H Qmin6.0 m
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Max. volume flow Qmax6.0 m³/h
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Min. fluid temperature Tmin2 °C
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Max. fluid temperature Tmax65 °C
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Min. ambient temperature Tmin0 °C
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Max. ambient temperature Tmax40 °C
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Max. permitted total water hardness3.21 mmol/l (18°dH)
Motor data
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Mains connection1~230 V, 50 Hz
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Rated power P257.0 W
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Rated current IN0.58 A
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Max. speed nmax2700 1/min
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Power consumption P1 max147.0 W
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Emitted interferenceEN 61000-6-3
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Interference resistanceEN 61000-6-2
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Protection class motorIP44
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Insulation classF
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Threaded cable connection1 x PG11
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Motor protectionno
Materials
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Pump housingBronze
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ImpellerPPE-GF30
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ShaftOxide ceramic
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BearingCarbon, synthetic resin-impregnated
Installation dimensions
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Pipe connection on the suction side DNsG 1¼
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Pipe connection on the pressure side DNdG 1¼
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Port-to-port length L0150 mm
Information for order placements
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BrandWilo
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Product descriptionStar-Z 20/7-3
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EAN number4016322698067
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Article number4081203
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Net weight, approx. m3 kg
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Gross weight, approx. m2.9 kg
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Length with packaging147 mm
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Height with packaging100 mm
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Width with packaging187 mm
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Packaging propertySales packaging
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Packaging typeCardboard box
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Minimum order quantity1
Tender text
This circulation pump is suitable only for drinking water.
Domestic hot water circulation pump, glandless pump with manual three-stage speed control for pipe installation.
Blocking current-proof motor Pump housing made of bronze, impeller made of fibreglass-reinforced plastic, ceramic shaft with resin-impregnated carbon friction bearings.
Operating data
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Fluid mediaWater
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Fluid temperature T2 °C
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Ambient temperature T0 °C
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Maximum operating pressure PN10 bar
-
Max. permitted total water hardness3.21 mmol/l (18°dH)
Motor data
-
Emitted interferenceEN 61000-6-3
-
Interference resistanceEN 61000-6-2
-
Mains connection1~230 V, 50 Hz
-
Power consumption P1 max147.0 W
-
Max. speed nmax2700 1/min
-
Rated current IN0.58 A
-
Protection class motorIP44
-
Threaded cable connection1 x PG11
Materials
-
Pump housingBronze
-
ImpellerPPE-GF30
-
ShaftOxide ceramic
-
BearingCarbon, synthetic resin-impregnated
Installation dimensions
-
Pipe connection on the suction side DNsG 1¼
-
Pipe connection on the pressure side DNdG 1¼
-
Port-to-port length L0150 mm
Information for order placements
-
BrandWilo
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Product descriptionStar-Z 20/7-3
-
Net weight, approx. m3 kg
-
Article number4081203
Wiring diagram
Star-E

Blocking current-proof motor
Single-phase motor (EM) 2‐pole ‐ 1~230 V, 50 Hz
With built-in capacitor

Ordering information
Information for order placements
-
BrandWilo
-
Product descriptionStar-Z 20/7-3
-
EAN number4016322698067
-
Article number4081203
-
Gross weight, approx. m2.9 kg
-
Net weight, approx. m3 kg
-
Overall length L146.0 mm
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Height without packaging H94 mm
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ColourGreen
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Packaging propertySales packaging
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Packaging typeCardboard box
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Number per layer32
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Width without packaging B154.0 mm
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Minimum order quantity1
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Pieces per pallet256
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Date of sales availability2010-01-01
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Date of introduction2010-01-01
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