EF200R-C
32
Inlet and outlet runs
To attain the specified level of accuracy of the measuring device, the inlet and outlet runs
mentioned below must be maintained at the very minimum.
h
Difference in expansion
• If there are several flow disturbances present, the longest specified inlet run must be
maintained.
• If the required inlet runs cannot be observed, it is possible to install a specially designed
flow conditioner.
1
15 × DN
5 × DN
3
25 × DN
5 × DN
40 × DN
5 × DN
4
2
20 × DN
5 × DN
5
20 × DN
5 × DN
6
17 × DN + 8 × h 5 × DN
h
7
50 × DN
5 × DN
9
40 × DN
5 × DN
8
5 × DN
DN
侑
25 (1"):
DN
侒
40 (1½"):
A0019189
5 × DN
5 × DN
5 × DN
25 × DN
Minimum inlet and outlet runs with various flow obstructions (DN: Pipe diameter)
1
Concentric reducer
2
Eccentric reducer
3
Single elbow (90
°
elbow)
4
Double elbow (2 × 90
°
elbows, opposite, on one plane)
5
Double elbow 3D (2 × 90
°
elbows, opposite, not on one plane)
6
T-piece
7
Expansion
8
Control valve
9
Two measuring devices in a row where DN 侑 25 (1"): directly flange on flange
10
Two measuring devices in a row where DN 侒 40 (1½"): for spacing, see graphic
11
Combination pipe (Double elbow 3D (2 × 90
°
elbows, opposite, not on one lane) + reducer, etc.)
10
11