Product Information; Technical Data; Scope Of Delivery - Wilo Star STG Instrucciones De Instalación Y Funcionamiento

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5 Product information

5.1 Type key
Example: Wilo-Star-STG 25/4
Star-STG
25
/4

5.2 Technical data

Connection voltage
Mains frequency
Protection class IP
Max. motor speed
Water temperatures at max. ambient tem-
perature of +40°C
Max. ambient temperature
Max. operating pressure
Min. inlet pressure
at +50°C/+95°C/+110°C
Port-to-port length
Variable speed control
1)
The values apply up to 300 m above sea level; Addition for higher altitudes: 0.01 bar/
100 m increase in height. To prevent cavitation noises, be sure to maintain the min-
imum inlet pressure at the suction port of the pump.
5.3

Scope of delivery

• Complete circulation pump
• 2 flat gaskets
• Installation and operating instructions
24
STG = solar/geothermal pump, glandless pump
Screwed connection 15, (Rp ½), 25 (Rp1), 30 (Rp1 ½)
4 = maximum delivery head in m at Q = 0 m³/h
1)
1 ~ 230 V ± 10%
50 Hz
See rating plate
See rating plate
-10°C to +110°C
+40°C
10 bar (1000 kPa)
0.05 bar / 0.3 bar / 1.0 bar
(5 kPa / 30 kPa / 100 kPa)
130 mm / 180 mm
3 stages
WILO SE 11/2012