PRODUCT CATALOGUE 2025 | alre.de

PLANT ENGINEERING

FLOW MONITOR JSF-1 E…4 E MECHANICAL – TÜV-TESTED SWITCHING VALUE TABLE IN m 3 / h FOR JSF-1 E / 2 E / 1 RE / 2 RE

TYPE

PIPE DIAMETER

MIN. SETTING (FACTORY SETTING)

MAX. SETTING

OFF

ON

OFF

ON

E

1"

0.55

0.86

2.00

2.10

RE

1"

0.19

0.57

1.00

1.10

E

1 ¼"

0.82

1.30

2.80

3.00

RE

1 ¼"

0.24

0.90

1.40

1.60

E

1 ½"

1.10

1.70

4.00

4.20

RE

1 ½"

0.50

1.20

1.90

2.20

E

2"

2.10

3.20

7.30

7.80

RE

2"

0.90

2.30

3.60

4.10

E

2 ½"

2.80

4.30

9.80

10.50

RE

2 ½"

1.20

3.10

4.90

5.50

E

3"

4.00

6.10

13.80

14.70

RE

3"

2.10

4.90

7.40

8.20

E

4"

10.40

15.40

32.00

33.90

RE

4"

4.90

11.30

17.10

19.10

E

4" Z

7.00

10.50

21.70

23.10

RE

4" Z

3.30

7.70

11.60

13.00

E

5"

20.80

30.60

63.50

67.30

RE

5"

9.70

22.40

34.00

37.90

E

5" Z

10.70

15.80

33.30

34.70

RE

5" Z

5.00

11.50

17.50

19.60

E

6"

29.20

43.00

89.10

94.50

RE

6"

13.60

31.50

47.60

53.20

E

6" Z

13.10

19.30

39.90

42.40

RE

6" Z

6.10

14.10

21.40

23.90

E

8"

72.60

85.10

165.70

172.50

RE

8"

25.70

59.60

90.10

100.70

E

8" Z

38.60

46.50

90.80

94.20

RE

8" Z

21.70

36.50

55.30

61.80

When there is a ‘Z’ (=additional paddle) in the ‘Pipe’ column, the long paddle 4 included in the delivery must be used in addition to the 3 factory-installed paddles.

SWITCHING VALUE TABLE IN l / h FOR JSF-3 E / -4 E

3 E

½

174

480

846

948

4 E

¾

138

408

768

858

The accuracy of the specified values depends on the actual diameter of the pipe, the actual reduction in the extra paddle and the flow monitor’s installation depth.

The devices are set to the minimum switch-off value at the factory. By turning the inner adjusting screw in a clockwise direction, you can set a higher deactivation value. The actual flow quantity must in any case be higher than the one specified in the switch table or the switch-on value, but there is no upper limit. The values specified apply to volume-related mass (density) of water. If the flow drops below the value that has been set, contacts 1 and 2 open and contacts 1 and 4 close.

201

Catalogue 2025

Prices valid from 01.01.2025 – 31.12.2025, prices may be subject to change | V1

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