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    Industry News   Newboneng Electric Boiler >>Industry News

Expansion tank selection

Tank volume calculations

When the 95-70 ° C heating system  V = 0.031Vc
When the 110-70 ° C heating system  V = 0.038Vc
When the 130-70 ° C heating system  V = 0. 043Vc

Type in V -- the effective volume of the expansion tank ( which corresponds to the inspection of the tube to the overflow pipe between the high volume ), L;

Vc -- water within the system capacity, L.

Expansion tank selection
Open high expansion tank

For small and medium-low temperature water heating system expansion tank specification table below, constructed in the plotting.

Model

Square

Circular

Nominal area(m³)

Effective volume(m³)

Outline dimensions(mm)

Nominal area(m³)

Effective volume(m³)

Cylinder body(mm)

L

W

H

Inside diameter

Height

1

0.5

0.61

900

900

900

0.3

0.35

900

700

2

0.5

0.63

1200

700

900

0.3

0.33

800

800

3

1

1.15

1100

1100

1100

0.5

0.54

900

1000

4

1

1.2

1400

900

1100

0.5

0.59

1000

900

5

2

2.27

1800

1200

1200

0.8

0.83

1000

1200

6

2

2.06

1400

1400

1200

0.8

0.81

1100

1000

7

3

3.05

2000

1400

1400

1

1.1

1100

1300

8

3

3.2

1600

1600

1400

1

1.2

1200

1200

9

4

4.32

2000

1600

1500

2

2.1

1400

1500

10

4

4.37

1800

1800

1500

2

2

1500

1300

11

5

5.18

2400

1600

1500

3

3.3

1600

1800

12

5

5.35

2200

1800

1500

3

3.4

1800

1500

13

 

 

 

 

 

4

4.2

1800

1800

14

 

 

 

 

 

4

4.6

2000

1600

15

 

 

 

 

 

5

5.2

1800

2200

16

 

 

 

 

 

5

5.2

2000

1800

Expansion tank design and installation points
Expansion tank installation position, should be considered to prevent the water in the water tank of the frozen, if the tank mounted in a heating room, should be considered for insulation.

Expansion pipe connected to the water supply riser to the top; access to the system in the mechanical circulatory system in a gravity circulation system at constant pressure point, generally connected to the pump in front of the entrance, circulation pipe connected to the system at constant pressure on the point of the level before the return water pipe the point between the constant pressure point, should maintain a distance of not less than 1.5-3m.
Expansion pipe, overflow pipe and circular pipe is strictly prohibited installation of valves, drains and signal tube should be set on the valve.

Expansion pipe in the non-heating room, circulation management system, the signal tube should be insulation.
General open expansion tank water temperature should not exceed 95 ° C.

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