8
4. MOUNTING THE FLOWMETER
4.1. Mounting the Primary Converter
4.1.1. In order to install the CP into the pipeline the following fittings are to be
delivered: companion flanges, pipe adaptors, taper adaptors (if the DN
of the primary converter is less than the DN of the pipeline intended for
mounting the CP).
4.1.2. Before working on the pipeline at the CP mounting location, fix the pipe
sections that may tip out of their axes after cutting the pipeline.
4.1.3. To mount the flanged CP and companion flanges with the welded adap-
tors in the pipeline, the piping shall be assembled into a single construc-
tion. If necessary, the tapered adaptors are welded to the pipe adaptors
(Fig.5).
If the hub diameter of the tapered adapter is wider than the mating
pipeline diameter, the adapter hub is cut to match the diameter of the
pipeline.
1
2
2
1
3
1
– taper adaptor
2
– companion flange with the pipe adaptor
3
– CP
Fig.5. Assembly-welded structure for mounting the flanged CP into the pipe-
line.
4.1.4. A pipe run of the required length is cut at the selected liquid-free pipe-
line section, and a structure with a flanged CP is welded instead. The
arrow on the CP shall point to the flow direction or forward flow direction
in case of bidirectional measurements.
CAUTION!
It is
STRICTLY FORBIDDEN
to throw the CP and hit it
while mounting. This can cause damage to the PEAs installed on it.
4.1.5. Components of the assembly-welded structure are welded together and
then welded to the pipeline where the flow meter will be installed in
compliance with local rules and regulations in force. Alignment of the
whole unit and flatness/parallel alignment of the flanges for the CP to be
mounted between them must be provided.
4.2. Mounting the Secondary Measuring Converter
Fixing the CS and Secondary power source in vertical plane is per-
formed in accordance with the installation dimensions specified in the
Operation Manual.
