Data sheet: Wilo-Star-Z 25/6-3
Pump curves Single-phase current Approved fluids (other fluids on request)
v
0 0,5 1,0 1,5 2,0 2,5 m/s
Drinking water and water for food-
H/m
Wilo-Star-Z 25 / 6 processing companies in accordance
1~230 V - Rp 1 •
with TrinkwV 2001 (drinking water
5
ordinance)
4 Permitted field of application
ma
x.
Temperature range at max. ambient
3 -10...+110 °C
temperature +25 °C
2 Temperature range at max. ambient
-10...+95 °C
temperature +40 °C
mi
1
n
Temperature range for applications in
domestic hot water circulation systems
+2 ... +65 °C
0
0 1 2 3 4 Q/m³/h at maximum ambient temperature of
0 0,25 0,5 0,75 1 1,25 Q/l/s
+40°C
P1/W
max.
100 Temperature range for
90 applications in domestic hot
80 water circulation systems at
70
T 70 °C
max. ambient temperature of
60
min
+40 °C in short-term operation
50
2h
40
0 1 2 3 4 Q/m³/h
Max. permitted total hardness in
3.21 mmol/l (18 °dH)
domestic hot water circulation systems
Dimension drawing
101 Maximum permissible
Pmax 10 bar
54 G 1½ operating pressure
Pg 11
Pipe connections
Threaded pipe union Rp 1
90
79
Thread G 1½
180
Overall length L0 180 mm
78 Motor/electronics
Emitted interference EN 61000-6-3
93,5 33 96
Interference resistance EN 61000-6-2
Protection class IP 44
Terminal diagram 1~230 V
Insulation class F
Mains connection 1~230 V, 50 Hz
Speed n 1200 - 2200 rpm
Power consumption P1 49 / 74 / 99 W
Current consumption I 0.22 - 0.43 A
L N PE Motor protection Not required (blocking-current
proof)
Blocking current-proof motor
Single-phase motor (EM) 2‐pole ‐ 1~230 V, 50 Hz Threaded cable connection PG 1x11
With built-in capacitor
Materials
Subject to change without prior notice. www.wilo.com 50 Hz 2015-08 1/3
Data sheet: Wilo-Star-Z 25/6-3
Pump housing Red brass (CC 499K) according
to DIN 50930-6 in accordance
with Drinking Water Ordinance
Impeller Plastic (PPO)
Pump shaft Oxide ceramic, brown (Al2O3)
Bearing Carbon, synthetic resin
impregnated
Minimum suction head at suction port for avoiding
cavitation at water pumping temperature
Minimum suction head at 40 / 65 / 110
0.5 / 3 / 10 m
°C
Information for order placements
Make Wilo
Type Star-Z 25/6-3
Art no. 4047573
Weight approx. m 3 kg
Subject to change without prior notice. www.wilo.com 50 Hz 2015-08 2/3
Specification texts: Wilo-Star-Z 25/6-3
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.
Materials
Pump housing: Red brass (CC 499K) according to DIN 50930-6 in accordance with Drinking Water Ordinance
Impeller: Plastic (PPO)
Pump shaft: Oxide ceramic, brown (Al2O3)
Bearing: Carbon, synthetic resin impregnated
Approved fluids (other fluids on request)
3
Max. volume flow: 4.8 m /h
Max. delivery head: 6.0 m
Pipe connections
Threaded pipe union: Rp 1
Thread: G 1½
Nominal flange diameter: 25
Overall length: 180 mm
Motor/electronics
Emitted interference: EN 61000-6-3
Interference resistance: EN 61000-6-2
Protection class: IP 44
Insulation class: F
Mains connection: 1~230 V, 50 Hz
Max. speed: 2200 rpm
Speed: 1200 - 2200 rpm
Nominal motor power: 35.0 W
Power consumption 1~230 V: 49 / 74 / 99 W
Current at 1~230V: 0.22 / 0.32 / 0.43 A
Motor protection: Not required (blocking-current proof)
Threaded cable connection: 1x11
Information for order placements
Art no.: 4047573
EAN number: 4016322431244
Weight approx.: 2.7 kg
Make: Wilo
Designation: Wilo-Star-Z 25/6-3
Subject to change without prior notice. www.wilo.com 50 Hz 2015-08 3/3
