KROHNE OPTISWIRL 5080 Handbook page 26

INSTALLATION
3
CAUTION!
Verify that the inner diameter of the gaskets is larger than that of the flow tube bore and pipe and
that the gaskets do not protrude into the flowmeter entrance or exit. Protrusion into the
flowstream has an adverse effect on performance.
INFORMATION!
If welding the flanges to the process piping is required, protect the flowmeter from weld
splatter, which could affect flowmeter accuracy. A solid sheet of gasketing should be installed at
each end of the meter during welding. Remove this sheet and install the flange gaskets after
welding.
• Visually inspect for concentricity (centering and alignment) of mating flanges.
• Install the rest of the studs and nuts and tighten the nuts in accordance with conventional
flange bolt tightening practice (that is, incremental and alternate tightening of bolts).
INFORMATION!
If the adjoining flanges are misaligned, align the flowmeter with the upstream
26 www.krohne.com
OPTISWIRL 5080
upstream flange.
upstream upstream
04/2020 - 4005615602 - MA OPTISWIRL 5080 R02 en