
8
Example:
Suppose a pipe of 300 mm inner diameter (DN300) and 5.5 mm thick. In the table we can
see that the distance that the insertion fitting must extend above the exterior wall is H =
60,5 - s = 60,5 -5,5 = 55 mm.
The values in the table are calculated with the gasket supplied with the instrument, which
is 3 mm thick. If the thickness of the gasket is changed, the value of H will change.
The equation to calculate H’ for a gasket of thickness d is the following:
H’ = H + 3 - d
In the previous example, if the gasket was 5 mm thick, the distance that the fitting should
extend above the exterior wall would be H’ = 55 + 3 - 5 = 53 mm.
DN
Sensor
length
Fitting
length
C (H)
80
101 93
10 88-s
100 12,5 85,5-s
125 15,5 82,5-s
150 19 79-s
200 25 73-s
250 31 67-s
300 37,5 60,5-s
350 44 54-s
400 50 48-s
500
206 145
62,5 140,5-s
600 75 128-s
700 87,5 115,5-s
800 100 103-s
900 112,5 90,5-s
1000 125 78-s
1200
356 190
150 203-s
1400 175 178-s
1600 200 153-s
1800 225 128-s
2000 250 103-s
Qnom
m
3
/h
90,5
141,3
220,9
318,1
565,5
883,6
1.272.,3
1.731,8
2.261,9
3.534,3
5.089,4
6.927,2
9.047,8
11.451,1
14.137,1
20.357,5
27.708,8
36.191,1
45.804,4
56.548,7
Threaded fitting
Flange fitting
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