Burkert Type 8011 - Manual (Page 24)

24
Installationandwiring
Type 8011
With regulating valve Pipe with 2 elbows at 90°
in 3 dimensions
Pipe with 2 elbows
at 90°
Pipe with 1 elbow at 90° or 1
T-piece
With pipe expansion With pipe reduction
50 x DN 5 x DN 40 x DN 5 x DN
25 x DN 5 x DN 20 x DN 5 x DN
18 x DN 5 x DN 15 x DN 5 x DN
Fig. 4: Upstream and downstream distances depending on the
design of the pipes.
→
If necessary, use a flow conditioner to improve measurement
precision.
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Install the device in such a way that the paddle-wheel axis is
horizontal.
→
On an horizontal pipe, mount the device in such a way that the
paddle-wheel is downwards (Fig. 5).
→
Prevent the formation of air bubbles in the pipe in the section
around the device (Fig. 6).
→
Ensure that the pipe is always filled in the section around the
device (Fig. 7).
Fig. 5: Paddle-wheel downwards on an horizontal pipe
Correct
Correct
Incorrect
Incorrect
Fluid circulation
direction
Fig. 6: Air bubbles within the pipe
Correct Incorrect
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