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EN

4

VB25-32-IM-DE-W-UK-05-2023-Rev.1 | Part no. 10025989

3 Technical data

Hydraulic performance data

VB25/32-2

VB25/32-3

VB25/32-4

VB25/32-5

Max. operating pressure

6 bar

Operating temperature

2 °C to 110 °C

Media

Water / water-glycol mixtures according to VDI 2035/ÖNORM H 5195

Dimensions

Width x height x depth 
with EPP shell

600 x 178 x 137 mm

900 x 178 x 137 mm

1200 x 178 x 137 mm

1500 x 178 x 137 mm

Width x height x depth 
without EPP shell

510 x 157 x 80 mm

810 x 157 x 80 mm

1110 x 157 x 80 mm

1410 x 157 x 80 mm

Total weight

excluding packaging

5.6 kg

8.4 kg

12.4 kg

16.5 kg

including packaging

5.9 kg

8.8 kg

13.2 kg

17.4 kg

Connections to pipe net-
work 

Heating circuit

G 1 ½ union nut, flat sealing

Boiler circuit

G 1 ½ male connection. flat sealing

Nominal diameter

DN 32

Materials

Manifold

tubular steel

Union nut

brass CW617N

End cap

brass CW617N

Flat seal

AFM 34/2

Insulation

EPP

Flow coefficient (Cv) values

1 outlet open

15.2 m³/h

13.8 m³/h

14.8 m³/h

12.3 m³/h

2 outlets open

20.1 m³/h

19.1 m³/h

21.2 m³/h

19.3 m³/h

3 outlets open

-

20.6 m³/h

24.0 m³/h

21.8 m³/h

4 outlets open

-

-

24.1 m³/h

23.0 m³/h

5 outlets open

-

-

-

23.5 m³/h

Summary of Contents for VB25/32 Series

Page 1: ...Series VB25 32 Boiler manifold for pump groups FlowBox DN 25 32 Installation and operating manual EN WattsWater eu...

Page 2: ...perator is responsible for ensuring compliance with the local laws and regulations e g accident prevention regulations etc Incorrect operation or operating the product Boiler manifold VB25 32 outside...

Page 3: ...ary to the specifications Improper use of the product VB25 32 Modifications to the product VB25 32 that were not agreed with the manufacturer Using replacement or wear parts not approved by the manu f...

Page 4: ...mm 810 x 157 x 80 mm 1110 x 157 x 80 mm 1410 x 157 x 80 mm Total weight excluding packaging 5 6 kg 8 4 kg 12 4 kg 16 5 kg including packaging 5 9 kg 8 8 kg 13 2 kg 17 4 kg Connections to pipe net wor...

Page 5: ...100 1 000 100 1 000 10 000 mbar Pressure loss L h Flow rate 1 outlet open Kvs 15 2 m h 2 outlets open Kvs 20 1 m h VB25 32 2 1 10 100 1 000 100 1 000 10 000 mbar Pressure loss Flow rate L h 2 outlets...

Page 6: ...4 1 outlet open Kvs 14 8 m h 2 outlets open Kvs 21 2 m h 3 outlets open Kvs 24 0 m h 4 outlets open Kvs 24 1 m h 1 10 100 1 000 100 1 000 10 000 VB25 32 5 Pressure loss mbar Flow rate L h 1 oultet op...

Page 7: ...sure to observe the specified installation positions and flow directions of the parts being replaced CAUTION Material damage Opening shut off valves quickly produces pressure surges Always open shut o...

Page 8: ...Part no 10025989 6 3 Installation variants A B A B C D E A B B A C D E 180 180 B A A B E C D E B A B A D C A Return heating circuit B Supply heating circuit C Return boiler circuit D Supply boiler ci...

Page 9: ...product VB25 32 for leaks and retighten sealing connections or replace seals as required Actions following maintenance work 1 Check that all screw fittings that were unscrewed have been retightened a...

Page 10: ...ion a specialist company to do so 2 Sort the assemblies and component parts into recyclable ma terials hazardous substances and operating materials 3 Dispose of the assemblies and components in accord...

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