Manual

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→ Install the fitting on the pipe to comply with the
upstream and downstream distances defined by
standard EN ISO 5167-1 (see Fig. 3).
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
With control valve
Pipe with 2 elbows
at 90°
Pipe with 2 elbows at 90°
in 3 dimensions
Pipe with 1 elbow at 90°
or 1 T-piece
With pipe expansion
With pipe
reduction
Fig. 3: Upstream and downstream distances depending
on the design of the pipes.
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→ Use a flow conditioner, if necessary, to obtain the best
accuracy.
→ Prevent the formation of air bubbles in the pipe (see
Fig. 4).
→ Ensure the pipe is always filled with liquid (see Fig. 5).
Correct
Correct
Incorrect
Incorrect
Direction of fluid flow
Fig. 4: Additional recommendations on installation
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38
Correct
Incorrect
Correct Incorrect
Fig. 5: Additional recommendations on installation
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Installing a fitting with weld ends
Follow the previously described general installation
recommendations.
note
The seal on the fitting with weld-end connections
may be damaged during welding.
→ Before welding the weld-ends, unscrew the 4 tigh-
tening screws.
→ Remove the sensor holder.
→ Remove the seal.
→ Weld the weld-ends.
→ After welding, correctly replace the seal in the
groove.
→ Replace the sensor holder.
→ Tighten the 4 screws in an alternating pattern, app-
lying a nominal tightening torque of 1,5 Nm.
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