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5.2 Installation in pipes
The unit is installed in the pipe using adapters� Adapters have to be ordered sepa-
rately as accessories�
-Order no� E40199: 2 adapters for R½ pipes + 2 seals)�
1� Screw the adapter (B) into the pipe (A)�
2� Place the seals (C) and install the unit according to the marked flow direction�
3� Screw the adapter (B) with the threads (D) until it is hand-tight�
4� Tighten the two adapters in opposite direction (tightening torque: 30 Nm)�
The unit can also be used in G¾ fit-
tings� To do so, first screw an adapter
G½ - G¾ (B) with O-ring (C) on both
threads (D) of the unit�
Place the seals (A) and install the unit
according to the marked flow direction�
Adapters have to be ordered separately as accessories�
-Order no� E40189: 2 adapters G½ - G¾ + 2 O-rings + 2 seals)�
After installation air bubbles in the system can affect the measurement� Help:
► Rinse the system after installation for ventilation (rinsing quantity > 3 l/min�)�
In cases of horizontal installation: As a result of design requirements a small
quantity of the medium always remains in the measuring channel after switching
off the pump�