3
Installation
3.1
Installation of the assembly
The flow assembly should only be installed in
pipes at locations where the pipe cannot run
dry. Installation in the by-pass is preferable to
installation in the process pipe as the by-pass
pipe can be blocked off without interrupting
the process. This permits measurement,
sampling and maintenance of the electrode
without interrupting the process.
The drain screw fitted to the flow assembly
base permits the connection of outlet or
sampling pipes.
Warning:
•
Depressurise the pipe before
installing or removing the
assembly.
•
The medium pressure in the pipe
must not exceed the maximum
permissible flow assembly or
electrode pressure.
p
1
p
2
p
1
> p
2
DN 25
Drain /
sampling
pipe
Process pipe
By-pass pipe
DN 25
Fig. 3.1
Pipe by-pass
The pressure build-up
necessary to produce
flow through the
sampling by-pass is
produced by a plate
orifice in the process
pipe.
By-pass pipe
DN 25
p
2
> p
1
p
2
p
1
Process pipe
Drain /
sampling
pipe
DN 10
Fig. 3.2
Pump by-pass
The pressure build-up
necessary to produce
flow through the
sampling by-pass is
produced by a booster
pump in the process
pipe.
Sampling pipe
DN 25
p
Process pipe
Sampling
Drain
∅
d
Fig. 3.3
Sampling pipe
Stub pipe branching off
from the process pipe
without raising pressure.
MONTAGE2.CDR
MONTAGE3.CDR
MONTAGE4.CDR
xa240e03.chp
FlowFit P CPA 240
3 Installation
Hauser
9
