DF4000 Rev0204
11
The preferred location for the mounting
of a flow sensor is on the top half of the
pipe. The best orientation is vertical. If
the sensor is mounted on the bottom of
the pipe, it may be susceptible to the
accumulation of dirt.
When mounting the sensor after an elbow
the length L must be at least 6 times the
pipe diameter.
When mounting the sensor before a valve
or an elbow the length L must be at least
equal to the pipe diameter.
When mounting the sensor after the pipe
diameter is reduced the length L must be
at least 2 times the pipe diameter.
When mounting the sensor after a valve
the length L must be at least 14 times the
pipe diameter.
Figure 3. Flow Sensor Location Guidelines
Best Orientation
L
L
L
L
After Elbow
L > 6 X PIPE DIA.
Before Valve or Elbow
L > 1 X PIPE DIA.
After Reduction
L > 2 X PIPE DIA.
After Valve
L > 14 X PIPE DIA.
