Series description: Wilo-Star-STG

Subject to change without prior notice. www.wilo.com 50Hz (non EU/non ErP) 2014-08 1 / 25

0 1 2 3 4 5 Q/m/h0

2

4

8

10

6

H/m Wilo-Star-STG

15(25)/6

15(25)/4

15/1115/9

15(25)/6,525(30)/7

25(30)/8

DesignGlandless circulation pump with threaded connection. Preselectable speedstages for power adjustment

ApplicationPrimary circuits of solar and geothermal systems

Type keyExample: Star STG 25/6

Star-STGStandard pump for solar and geothermal energysystems

25/ Nominal diameter Rp 1

6 Max. delivery head in m

Special features/product advantagesSpecial hydraulics for use in solar and geothermal energy systemsPump housing with wrench attachment pointPump housing with cataphoretic coating for the prevention ofcorrosion by condensation formation

Technical dataPermissible temperature range 10C to +110C, in short-termoperation (2 h) +120C

Mains connection 1~230V, 50HzProtection class IP44Screwed connection Rp, Rp1 and Rp1Max. operating pressure 10 bar

Equipment/functionOperating modes

Speed-stage switchingManual functions

Setting of the speed stages: 3 speed stagesEquipment

Wrench attachment point on pump body (only for nominal diameter ofDN25/DN30)

Cable inlet in possible on both sidesQuick connection with spring clipsBlocking current-proof motor

MaterialsPump housing: Grey cast ironImpeller: PolypropyleneShaft: stainless steelBearing: Carbon, metal impregnated

Scope of deliveryPumpSealInstallation and operating instructions

AccessoriesScrewed connectionsAdapter fittingsThermal insulation shells

Data sheet: Wilo-Star-STG 15/4

Subject to change without prior notice. www.wilo.com 50Hz (non EU/non ErP) 2014-08 2 / 25

Pump curves

0 0,4 0,8 1,2 1,6

0 0,5 1,0 1,5 2,0 2,5 3,0 3,5

0 0,2 0,4 0,6 0,8 1,0

0

1

2

3

4

0 0,5 1,0 1,5 2,0 2,5 3,0 3,50

20

40

v

0 1 2 3 4 5 Rp

Rp1

Wilo-Star-STG15/4, 25/41~230 V - Rp / Rp 1

max.

min.

max.

min.

m/s

Q/l/s

Q/m/h

H/m

Q/m/h

P1/W

Dimension drawing

13

0

78

58

96

90

92,5

100

PG 11

54

33G 1

(Rp )

Wiring diagram

L N PE

Blocking current-proof motorSingle-phase motor (EM) 2pole 1~230 V, 50 HzWith built-in capacitor

Approved fluids (other fluids on request)

Heating water (in accordance with VDI2035)

Water-glycol mixtures (max. 1:1; above20% admixture, the pumping datamust be checked)

Permitted field of application

Temperature range at max. ambienttemperature +40 C

-10 to +110 C (in short-termoperation 2 h: +120 C)

Maximum permissibleoperating pressure

Pmax 10bar

Pipe connections

Threaded pipe union Rp

Thread G 1

Overall length L0 130mm

Motor/electronics

Electromagnetic compatibility EN 61800-3

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

Speedn

1440 - 2350 / 1910 - 2630 /2140 - 2720rpm

Power consumption P1 28 / 38 / 48W

Current consumption I 0.13 / 0.17 / 0.21A

Motor protection Not required (blocking-currentproof)

Threaded cable connection PG 1x11

Materials

Pump housing Grey cast iron (EN-GJL-200)

Impeller Polypropylene

Pump shaft Stainless steel (X40Cr13)

Bearing Carbon, metal impregnated

Minimum suction head at suction port for avoidingcavitation at water pumping temperature

Minimum suction head at 50 / 95 / 110C

0.5 / 3 / 10m

Information for order placements

Make Wilo

Data sheet: Wilo-Star-STG 15/4

Subject to change without prior notice. www.wilo.com 50Hz (non EU/non ErP) 2014-08 3 / 25

Type Star-STG 15/4

Art no. 4056933

Weight approx. m 2kg

Data sheet: Wilo-Star-STG 15/6

Subject to change without prior notice. www.wilo.com 50Hz (non EU/non ErP) 2014-08 4 / 25

Pump curves

6v

0 0,5 1,0 1,5 2,0

0 1 2 3 4

0 0,2 0,4 0,6 0,8 1,0 1,2

0

1

2

3

4

5

6

0 1 2 3 40

40

0 1 2 3 4 5 Rp

Rp1

Wilo-Star-STG15/6, 25/61~230 V - Rp / Rp 1

max.

max.

min.

min.

m/s

Q/l/s

Q/m/h

H/m

Q/m/h

P1/W

Dimension drawing

13

0

78

54

97

90

92,5

100

PG 11

54

33G 1

(Rp )

Wiring diagram

L N PE

Blocking current-proof motorSingle-phase motor (EM) 2pole 1~230 V, 50 HzWith built-in capacitor

Approved fluids (other fluids on request)

Heating water (in accordance with VDI2035)

Water-glycol mixtures (max. 1:1; above20% admixture, the pumping datamust be checked)

Permitted field of application

Temperature range at max. ambienttemperature +40 C

-10 to +110 C (in short-termoperation 2 h: +120 C)

Maximum permissibleoperating pressure

Pmax 10bar

Pipe connections

Threaded pipe union Rp

Thread G 1

Overall length L0 130mm

Motor/electronics

Electromagnetic compatibility EN 61800-3

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

Speedn

1250 - 2350 / 1700 - 2650 /2150 - 2750rpm

Power consumption P1 41 / 54 / 63W

Current consumption I 0.18 / 0.23 / 0.28A

Motor protection Not required (blocking-currentproof)

Threaded cable connection PG 1x11

Materials

Pump housing Grey cast iron (EN-GJL-200)

Impeller Polypropylene

Pump shaft Stainless steel (X40Cr13)

Bearing Carbon, metal impregnated

Minimum suction head at suction port for avoidingcavitation at water pumping temperature

Minimum suction head at 50 / 95 / 110C

0.5 / 3 / 10m

Information for order placements

Make Wilo

Data sheet: Wilo-Star-STG 15/6

Subject to change without prior notice. www.wilo.com 50Hz (non EU/non ErP) 2014-08 5 / 25

Type Star-STG 15/6

Art no. 4056946

Weight approx. m 2kg

Data sheet: Wilo-Star-STG 15/6.5

Subject to change without prior notice. www.wilo.com 50Hz (non EU/non ErP) 2014-08 6 / 25

Pump curves

0 0,5 1,0 1,5 2,0 2,5 3,0

0 0,2 0,4 0,6 0,8 1,0

0

1

2

4

5

3

6

7

0 0,5 1,0 1,5 2,0 2,5 3,0

3,5

3,50

40

80

0 0,4 0,8 1,2 1,6 2,0 Rp1

Rp0 1 2 3 4 5

min.

max.

Wilo-Star-STG15/6,5, 25/6,51~230 V - Rp / Rp 1

max.

min.

m/s

Q/l/s

Q/m/h

H/m

Q/m/h

P1/W

Dimension drawing

13

0

78

54

96

90

92,5

100

PG 11

54

33G 1

(Rp )

Wiring diagram

L N PE

Blocking current-proof motorSingle-phase motor (EM) 2pole 1~230 V, 50 HzWith built-in capacitor

Approved fluids (other fluids on request)

Heating water (in accordance with VDI2035)

Water-glycol mixtures (max. 1:1; above20% admixture, the pumping datamust be checked)

Permitted field of application

Temperature range at max. ambienttemperature +40 C

-10 to +110 C (in short-termoperation 2 h: +120 C)

Maximum permissibleoperating pressure

Pmax 10bar

Pipe connections

Threaded pipe union Rp

Thread G 1

Overall length L0 130mm

Motor/electronics

Electromagnetic compatibility EN 61800-3

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

Speedn

1178 - 2170 / 1714 - 2604 /2303 - 2707rpm

Power consumption P1 35 / 52 / 70W

Current consumption I 0.16 / 0.24 / 0.30A

Motor protection Not required (blocking-currentproof)

Threaded cable connection PG 1x11

Materials

Pump housing Grey cast iron (EN-GJL-200)

Impeller Polypropylene

Pump shaft Stainless steel (X40Cr13)

Bearing Carbon, metal impregnated

Minimum suction head at suction port for avoidingcavitation at water pumping temperature

Minimum suction head at 50 / 95 / 110C

0.5 / 3 / 10m

Information for order placements

Make Wilo

Data sheet: Wilo-Star-STG 15/6.5

Subject to change without prior notice. www.wilo.com 50Hz (non EU/non ErP) 2014-08 7 / 25

Type Star-STG 15/6.5

Art no. 4056952

Weight approx. m 3kg

Data sheet: Wilo-Star-STG 15/9

Subject to change without prior notice. www.wilo.com 50Hz (non EU/non ErP) 2014-08 8 / 25

Pump curves

120

100

80

60

40

20

0 0,1 0,2 0,3 0,4 0,5 0,6 0,7

0 0,5 1 1,5

0 0,5 1 1,5 2 2,5

v

10

8

6

4

2

0

max.

min

max.

min

0 0,5 1 1,5 2 2,5

Wilo-Star STG 15/91~230 V - Rp

m/s

Q/l/s

Q/m/h

Q/m/h

H/m

P1/W

Dimension drawing53,7

90

78

,8

67,2

130,4

G 1

18

0

90

78

3

10522,5

G 1

Wiring diagram

L N PE

Blocking current-proof motorSingle-phase motor (EM) 2pole 1~230 V, 50 HzWith built-in capacitor

Approved fluids (other fluids on request)

Heating water (in accordance with VDI2035)

Water-glycol mixtures (max. 1:1; above20% admixture, the pumping datamust be checked)

Permitted field of application

Temperature range at max. ambienttemperature +40 C

-10 to +110 C (in short-termoperation 2 h: +120 C)

Maximum permissibleoperating pressure

Pmax 10bar

Pipe connections

Threaded pipe union Rp

Thread G 1

Overall length L0 180mm

Motor/electronics

Electromagnetic compatibility EN 61800-3

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

Speedn

811 - 1564 / 1154 - 2122 /1687 - 2535rpm

Power consumption P1 50 / 78 / 110W

Current consumption I 0.23 / 0.34 / 0.50A

Motor protection Not required (blocking-currentproof)

Threaded cable connection PG 1x11

Materials

Pump housing Grey cast iron (EN-GJL-200)

Impeller Polypropylene

Pump shaft Stainless steel (X40Cr13)

Bearing Carbon, metal impregnated

Minimum suction head at suction port for avoidingcavitation at water pumping temperature

Minimum suction head at 50 / 95 / 110C

0.5 / 3 / 10m

Information for order placements

Make Wilo

Data sheet: Wilo-Star-STG 15/9

Subject to change without prior notice. www.wilo.com 50Hz (non EU/non ErP) 2014-08 9 / 25

Type Star-STG 15/9

Art no. 4061441

Weight approx. m 4kg

Data sheet: Wilo-Star-STG 15/11

Subject to change without prior notice. www.wilo.com 50Hz (non EU/non ErP) 2014-08 10 / 25

Pump curves

max.

0 0,1 0,2 0,3 0,4 0,5 0,6 0,7

0 0,5 1 1,5

0 0,5 1 1,5 2 2,5

v

10

8

6

4

2

0

max.

min.

0 0,5 1 1,5 2 2,5

160

140

120

100

80

60

min.

Wilo-Star STG 15/111~230 V - Rp

m/s

Q/l/s

Q/m/h

Q/m/h

H/m

P1/W

Dimension drawing53,7

90

78

,8

67,2

130,4

G 1

18

0

90

91

3

11822,5

G 1

Wiring diagram

L N PE

Blocking current-proof motorSingle-phase motor (EM) 2pole 1~230 V, 50 HzWith built-in capacitor

Approved fluids (other fluids on request)

Heating water (in accordance with VDI2035)

Water-glycol mixtures (max. 1:1; above20% admixture, the pumping datamust be checked)

Permitted field of application

Temperature range at max. ambienttemperature +40 C

-10 to +110 C (in short-termoperation 2 h: +120 C)

Maximum permissibleoperating pressure

Pmax 10bar

Pipe connections

Threaded pipe union Rp

Thread G 1

Overall length L0 180mm

Motor/electronics

Electromagnetic compatibility EN 61800-3

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

Speedn

716 - 1448 / 1064 - 1999 /1486 - 2481rpm

Power consumption P1 75 / 115 / 165W

Current consumption I 0.32 / 0.52 / 0.72A

Motor protection Not required (blocking-currentproof)

Threaded cable connection PG 1x11

Materials

Pump housing Grey cast iron (EN-GJL-200)

Impeller Polypropylene

Pump shaft Stainless steel (X40Cr13)

Bearing Carbon, metal impregnated

Minimum suction head at suction port for avoidingcavitation at water pumping temperature

Minimum suction head at 50 / 95 / 110C

0.5 / 3 / 10m

Information for order placements

Make Wilo

Data sheet: Wilo-Star-STG 15/11

Subject to change without prior notice. www.wilo.com 50Hz (non EU/non ErP) 2014-08 11 / 25

Type Star-STG 15/11

Art no. 4061442

Weight approx. m 4kg

Data sheet: Wilo-Star-STG 25/4

Subject to change without prior notice. www.wilo.com 50Hz (non EU/non ErP) 2014-08 12 / 25

Pump curves

0 0,4 0,8 1,2 1,6

0 0,5 1,0 1,5 2,0 2,5 3,0 3,5

0 0,2 0,4 0,6 0,8 1,0

0

1

2

3

4

0 0,5 1,0 1,5 2,0 2,5 3,0 3,50

20

40

v

0 1 2 3 4 5 Rp

Rp1

Wilo-Star-STG15/4, 25/41~230 V - Rp / Rp 1

max.

min.

max.

min.

m/s

Q/l/s

Q/m/h

H/m

Q/m/h

P1/W

Dimension drawing

18

0

78

58

96

90

92,5

100

PG 11

54

33G 1

(Rp 1)

Wiring diagram

L N PE

Blocking current-proof motorSingle-phase motor (EM) 2pole 1~230 V, 50 HzWith built-in capacitor

Approved fluids (other fluids on request)

Heating water (in accordance with VDI2035)

Water-glycol mixtures (max. 1:1; above20% admixture, the pumping datamust be checked)

Permitted field of application

Temperature range at max. ambienttemperature +40 C

-10 to +110 C (in short-termoperation 2 h: +120 C)

Maximum permissibleoperating pressure

Pmax 10bar

Pipe connections

Threaded pipe union Rp 1

Thread G 1

Overall length L0 180mm

Motor/electronics

Electromagnetic compatibility EN 61800-3

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

Speedn

1440 - 2350 / 1910 - 2630 /2140 - 2720rpm

Power consumption P1 28 / 38 / 48W

Current consumption I 0.13 / 0.17 / 0.21A

Motor protection Not required (blocking-currentproof)

Threaded cable connection PG 1x11

Materials

Pump housing Grey cast iron (EN-GJL-200)

Impeller Polypropylene

Pump shaft Stainless steel (X40Cr13)

Bearing Carbon, metal impregnated

Minimum suction head at suction port for avoidingcavitation at water pumping temperature

Minimum suction head at 50 / 95 / 110C

0.5 / 3 / 10m

Information for order placements

Make Wilo

Data sheet: Wilo-Star-STG 25/4

Subject to change without prior notice. www.wilo.com 50Hz (non EU/non ErP) 2014-08 13 / 25

Type Star-STG 25/4

Art no. 4050265

Weight approx. m 3kg

Data sheet: Wilo-Star-STG 25/6

Subject to change without prior notice. www.wilo.com 50Hz (non EU/non ErP) 2014-08 14 / 25

Pump curves

6v

0 0,5 1,0 1,5 2,0

0 1 2 3 4

0 0,2 0,4 0,6 0,8 1,0 1,2

0

1

2

3

4

5

6

0 1 2 3 40

40

0 1 2 3 4 5 Rp

Rp1

Wilo-Star-STG15/6, 25/61~230 V - Rp / Rp 1

max.

max.

min.

min.

m/s

Q/l/s

Q/m/h

H/m

Q/m/h

P1/W

Dimension drawing

18

0

78

58

96

90

92,5

100

PG 11

54

33G 1

(Rp 1)

Wiring diagram

L N PE

Blocking current-proof motorSingle-phase motor (EM) 2pole 1~230 V, 50 HzWith built-in capacitor

Approved fluids (other fluids on request)

Heating water (in accordance with VDI2035)

Water-glycol mixtures (max. 1:1; above20% admixture, the pumping datamust be checked)

Permitted field of application

Temperature range at max. ambienttemperature +40 C

-10 to +110 C (in short-termoperation 2 h: +120 C)

Maximum permissibleoperating pressure

Pmax 10bar

Pipe connections

Threaded pipe union Rp 1

Thread G 1

Overall length L0 180mm

Motor/electronics

Electromagnetic compatibility EN 61800-3

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

Speedn

1250 - 2350 / 1700 - 2650 /2150 - 2750rpm

Power consumption P1 41 / 54 / 63W

Current consumption I 0.18 / 0.23 / 0.28A

Motor protection Not required (blocking-currentproof)

Threaded cable connection PG 1x11

Materials

Pump housing Grey cast iron (EN-GJL-200)

Impeller Polypropylene

Pump shaft Stainless steel (X40Cr13)

Bearing Carbon, metal impregnated

Minimum suction head at suction port for avoidingcavitation at water pumping temperature

Minimum suction head at 50 / 95 / 110C

0.5 / 3 / 10m

Information for order placements

Make Wilo

Data sheet: Wilo-Star-STG 25/6

Subject to change without prior notice. www.wilo.com 50Hz (non EU/non ErP) 2014-08 15 / 25

Type Star-STG 25/6

Art no. 4050266

Weight approx. m 3kg

Data sheet: Wilo-Star-STG 25/6.5

Subject to change without prior notice. www.wilo.com 50Hz (non EU/non ErP) 2014-08 16 / 25

Pump curves

0 0,5 1,0 1,5 2,0 2,5 3,0

0 0,2 0,4 0,6 0,8 1,0

0

1

2

4

5

3

6

7

0 0,5 1,0 1,5 2,0 2,5 3,0

3,5

3,50

40

80

0 0,4 0,8 1,2 1,6 2,0 Rp1

Rp0 1 2 3 4 5

min.

max.

Wilo-Star-STG15/6,5, 25/6,51~230 V - Rp / Rp 1

max.

min.

m/s

Q/l/s

Q/m/h

H/m

Q/m/h

P1/W

Dimension drawing

18

0

78

54

96

90

92,5

100

PG 11

54

33G 1

(Rp 1)

Wiring diagram

L N PE

Blocking current-proof motorSingle-phase motor (EM) 2pole 1~230 V, 50 HzWith built-in capacitor

Approved fluids (other fluids on request)

Heating water (in accordance with VDI2035)

Water-glycol mixtures (max. 1:1; above20% admixture, the pumping datamust be checked)

Permitted field of application

Temperature range at max. ambienttemperature +40 C

-10 to +110 C (in short-termoperation 2 h: +120 C)

Maximum permissibleoperating pressure

Pmax 10bar

Pipe connections

Threaded pipe union Rp 1

Thread G 1

Overall length L0 180mm

Motor/electronics

Electromagnetic compatibility EN 61800-3

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

Speedn

1178 - 2170 / 1714 - 2604 /2303 - 2707rpm

Power consumption P1 35 / 52 / 70W

Current consumption I 0.16 / 0.24 / 0.30A

Motor protection Not required (blocking-currentproof)

Threaded cable connection PG 1x11

Materials

Pump housing Grey cast iron (EN-GJL-200)

Impeller Polypropylene

Pump shaft Stainless steel (X40Cr13)

Bearing Carbon, metal impregnated

Minimum suction head at suction port for avoidingcavitation at water pumping temperature

Minimum suction head at 50 / 95 / 110C

0.5 / 3 / 10m

Information for order placements

Make Wilo

Data sheet: Wilo-Star-STG 25/6.5

Subject to change without prior notice. www.wilo.com 50Hz (non EU/non ErP) 2014-08 17 / 25

Type Star-STG 25/6.5

Art no. 4050267

Weight approx. m 3kg

Data sheet: Wilo-Star-STG 25/7

Subject to change without prior notice. www.wilo.com 50Hz (non EU/non ErP) 2014-08 18 / 25

Pump curves

0 0,4 0,8 1,2 1,6

0

2

4

6

8

0 1 2 3 4 5 60

50

100

150

0 1 2 3 4 5 6

Wilo-Star-STG25/7, 30/71~230 V - Rp 1 / Rp 1

max.

min.

0 0,5 1,0 1,5 2,0

v

0 0,5 1,0 1,5 2,0 2,5 3,0 Rp1

Rp1

min.

max.

m/s

H/m

Q/l/s

Q/m/h

Q/m/h

P1/W

Dimension drawing

93,5

101

79

18

0

109

91

90

G 1

PG 11

54

32

Wiring diagram

L N PE

Blocking current-proof motorSingle-phase motor (EM) 2pole 1~230 V, 50 HzWith built-in capacitor

Approved fluids (other fluids on request)

Heating water (in accordance with VDI2035)

Water-glycol mixtures (max. 1:1; above20% admixture, the pumping datamust be checked)

Permitted field of application

Temperature range at max. ambienttemperature +40 C

-10...+110 C

Maximum permissibleoperating pressure

Pmax 10bar

Pipe connections

Threaded pipe union Rp 1

Thread G 1

Overall length L0 180mm

Motor/electronics

Electromagnetic compatibility EN 61800-3

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

Speedn

1000 - 2300 / 1600 - 2650 /2200 - 2800rpm

Power consumption P1 62 / 92 / 132W

Current consumption I 0.30 / 0.42 / 0.58A

Motor protection Not required (blocking-currentproof)

Threaded cable connection PG 1x11

Materials

Pump housing Grey cast iron (EN-GJL-200)

Impeller Plastic (PP - 40% GF)

Pump shaft Stainless steel (X40Cr13)

Bearing Carbon, metal impregnated

Minimum suction head at suction port for avoidingcavitation at water pumping temperature

Minimum suction head at 50 / 95 / 110C

0.5 / 3 / 10m

Information for order placements

Make Wilo

Data sheet: Wilo-Star-STG 25/7

Subject to change without prior notice. www.wilo.com 50Hz (non EU/non ErP) 2014-08 19 / 25

Type Star-STG 25/7

Art no. 4111192

Weight approx. m 4kg

Data sheet: Wilo-Star-STG 30/7

Subject to change without prior notice. www.wilo.com 50Hz (non EU/non ErP) 2014-08 20 / 25

Pump curves

0 0,4 0,8 1,2 1,6

0

2

4

6

8

0 1 2 3 4 5 60

50

100

150

0 1 2 3 4 5 6

Wilo-Star-STG25/7, 30/71~230 V - Rp 1 / Rp 1

max.

min.

0 0,5 1,0 1,5 2,0

v

0 0,5 1,0 1,5 2,0 2,5 3,0 Rp1

Rp1

min.

max.

m/s

H/m

Q/l/s

Q/m/h

Q/m/h

P1/W

Dimension drawing

93,5

101

79

18

0

109

91

90

G 2

PG 11

54

32

Wiring diagram

L N PE

Blocking current-proof motorSingle-phase motor (EM) 2pole 1~230 V, 50 HzWith built-in capacitor

Approved fluids (other fluids on request)

Heating water (in accordance with VDI2035)

Water-glycol mixtures (max. 1:1; above20% admixture, the pumping datamust be checked)

Permitted field of application

Temperature range at max. ambienttemperature +40 C

-10...+110 C

Maximum permissibleoperating pressure

Pmax 10bar

Pipe connections

Threaded pipe union Rp 1

Thread G 2

Overall length L0 180mm

Motor/electronics

Electromagnetic compatibility EN 61800-3

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

Speedn

1000 - 2300 / 1600 - 2650 /2200 - 2800rpm

Power consumption P1 62 / 92 / 132W

Current consumption I 0.30 / 0.42 / 0.58A

Motor protection Not required (blocking-currentproof)

Threaded cable connection PG 1x11

Materials

Pump housing Grey cast iron (EN-GJL-200)

Impeller Plastic (PP - 40% GF)

Pump shaft Stainless steel (X40Cr13)

Bearing Carbon, metal impregnated

Minimum suction head at suction port for avoidingcavitation at water pumping temperature

Minimum suction head at 50 / 95 / 110C

0.5 / 3 / 10m

Information for order placements

Make Wilo

Data sheet: Wilo-Star-STG 30/7

Subject to change without prior notice. www.wilo.com 50Hz (non EU/non ErP) 2014-08 21 / 25

Type Star-STG 30/7

Art no. 4111193

Weight approx. m 3kg

Data sheet: Wilo-Star-STG 25/8

Subject to change without prior notice. www.wilo.com 50Hz (non EU/non ErP) 2014-08 22 / 25

Pump curves

0 2 3 4 51 6

0 0,4 0,8 1,2 1,6

0

2

4

6

8

0 1 2 3 4 5 60

50

100

150

Wilo-Star-STG25/8, 30/81~230 V - Rp 1 / Rp 1

v

0 0,5 1,0 1,5 2,0

0 0,5 1,0 1,5 2,0 2,5 3,0 Rp1

Rp1

max.

min.

max.

min.

m/s

Q/l/s

Q/m/h

Q/m/h

H/m

P1/W

Dimension drawing

93,5

116

79

18

0

119

88

90

G 1

PG 11

58

33

Wiring diagram

L N PE

Blocking current-proof motorSingle-phase motor (EM) 2pole 1~230 V, 50 HzWith built-in capacitor

Approved fluids (other fluids on request)

Heating water (in accordance with VDI2035)

Water-glycol mixtures (max. 1:1; above20% admixture, the pumping datamust be checked)

Permitted field of application

Temperature range at max. ambienttemperature +40 C

-10...+110 C

Maximum permissibleoperating pressure

Pmax 10bar

Pipe connections

Threaded pipe union Rp 1

Thread G 1

Overall length L0 180mm

Motor/electronics

Electromagnetic compatibility EN 61800-3

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

Speedn

930 - 2122 / 1505 - 2404 /2035 - 2760rpm

Power consumption P1 81 / 113 / 151W

Current consumption I 0.40 / 0.60 / 0.76A

Motor protection Not required (blocking-currentproof)

Threaded cable connection PG 1x11

Materials

Pump housing Grey cast iron (EN-GJL-200)

Impeller Plastic (PP - 40% GF)

Pump shaft Stainless steel (X40Cr13)

Bearing Carbon, metal impregnated

Minimum suction head at suction port for avoidingcavitation at water pumping temperature

Minimum suction head at 50 / 95 / 110C

0.5 / 3 / 10m

Information for order placements

Make Wilo

Data sheet: Wilo-Star-STG 25/8

Subject to change without prior notice. www.wilo.com 50Hz (non EU/non ErP) 2014-08 23 / 25

Type Star-STG 25/8

Art no. 4108817

Weight approx. m 3kg

Data sheet: Wilo-Star-STG 30/8

Subject to change without prior notice. www.wilo.com 50Hz (non EU/non ErP) 2014-08 24 / 25

Pump curves

0 2 3 4 51 6

0 0,4 0,8 1,2 1,6

0

2

4

6

8

0 1 2 3 4 5 60

50

100

150

Wilo-Star-STG25/8, 30/81~230 V - Rp 1 / Rp 1

v

0 0,5 1,0 1,5 2,0

0 0,5 1,0 1,5 2,0 2,5 3,0 Rp1

Rp1

max.

min.

max.

min.

m/s

Q/l/s

Q/m/h

Q/m/h

H/m

P1/W

Dimension drawing

93,5

116

79

18

0

119

88

90

G 2

PG 11

58

33

Wiring diagram

L N PE

Blocking current-proof motorSingle-phase motor (EM) 2pole 1~230 V, 50 HzWith built-in capacitor

Approved fluids (other fluids on request)

Heating water (in accordance with VDI2035)

Water-glycol mixtures (max. 1:1; above20% admixture, the pumping datamust be checked)

Permitted field of application

Temperature range at max. ambienttemperature +40 C

-10...+110 C

Maximum permissibleoperating pressure

Pmax 10bar

Pipe connections

Threaded pipe union Rp 1

Thread G 2

Overall length L0 180mm

Motor/electronics

Electromagnetic compatibility EN 61800-3

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

Speedn

930 - 2122 / 1505 - 2404 /2035 - 2760rpm

Power consumption P1 81 / 113 / 151W

Current consumption I 0.40 / 0.60 / 0.76A

Motor protection Not required (blocking-currentproof)

Threaded cable connection PG 1x11

Materials

Pump housing Grey cast iron (EN-GJL-200)

Impeller Plastic (PP - 40% GF)

Pump shaft Stainless steel (X40Cr13)

Bearing Carbon, metal impregnated

Minimum suction head at suction port for avoidingcavitation at water pumping temperature

Minimum suction head at 50 / 95 / 110C

0.5 / 3 / 10m

Information for order placements

Make Wilo

Data sheet: Wilo-Star-STG 30/8

Subject to change without prior notice. www.wilo.com 50Hz (non EU/non ErP) 2014-08 25 / 25

Type Star-STG 30/8

Art no. 4108818

Weight approx. m 4kg

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