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5 flow values and characteristics, For valves with 2/2-way valve body), English – Burkert Type 2105 User Manual

Page 21

background image

21

Technicaldata

0

1

2

3

4

5

6

7

10

0

1

2

3

4

5

6

7

8

9

10

9

8

DN2

5

DN4

0

pilot pressure [bar]

m

edium

pressure

[bar]

ø 90 ptfe

Fig. 26: Pressure graph, actuator ø 90 mm, control function I,

PTFE elastomer diaphragm

0

1

2

3

4

5

6

7

10

0

1

2

3

4

5

6

7

8

9

10

9

8

DN4

0

DN5

0

pilot pressure [bar]

m

edium

pressure

[bar]

ø 130 ptfe

Fig. 27: Pressure graph, actuator ø 130 mm, control function I,

PTFE elastomer diaphragm

7.5

flow values and characteristics

(for valves with 2/2-way valve body)

flow values for dn8

stroke

forged body (Vs)

cast body (Vg)

epdm

ptfe

epdm

ptfe

Kv value

[m

3

/h]

[%]

[m

3

/h]

[%]

[m

3

/h]

[%]

[m

3

/h]

[%]

0

0

0

0

0

0

0

0

0

10

0

0

0

0

0

0

0

0

20

0

0

0,21

13

0

0

0,26

17

30

0,04

4

0,42

26

0

0

0,5

33

40

0,2

20

0,64

39

0,14

15

0,73

48

50

0,36

35

0,88

54

0,29

31

0,88

58

60

0,52

51

1,09

67

0,45

47

1,08

72

70

0,65

64

1,23

75

0,58

61

1,25

83

80

0,79

77

1,44

88

0,71

75

1,37

91

90

0,91

89

1,55

95

0,84

88

1,44

95

100

1,02

100

1,63

100

0,95

100

1,51

100

Tab. 8: Flow values for DN8

english

Type 2103, 2104, 2105

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