Instructions for Use
– SCHMIDT
®
Flow Sensor SS 20.700
Page 10
Flow obstacle upstream of measuring distance
Minimum distance length of
Run-in (L1)
Run-out (L2)
Light bend (< 90°)
10 x D
5 x D
Reduction
expansion
90° bend
T-junction
15 x D
5 x D
Two 90° bends in
one plane
(2-dimensional)
20 x D
5 x D
Two 90° bends
with 3-dimensional
change in direction
35 x D
5 x D
Shut-off valve
45 x D
5 x D
Table 1 Run-in and run-out distances
The profile factors specified in Table 2 may become void by the use of
flow rectifiers.
