5.3 Installation of process coupling & ball valve
1. Drill a hole to the pipe, diameter 25–35
mm (1–1.4"). Process coupling diameter
is 50 mm (2").
2. Clean the hole so that there is no burr
on the inside or outside. See photo on
the right: the burr must be removed so
that the edges of the hole are smooth,
otherwise fibers will get snagged to the
ragged edges and cause irregularities in
the measurement result.
3. Center the coupling to the drilled hole and make sure it is in the correct position,
and weld the coupling to the pipe.
• Screened pulps: the notch on the coupling (see arrow) is on the side facing the
pulp flow;
• Unscreened pulps: the notch on the coupling is on the "downstream" side (=
opposite to flow direction).
Screened pulp: Unscreened pulp:
Installing the sensor | 15 (48)
K20798 V1.1 EN - 1 - 12/2019
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