Siemens SITRANS FUH1010PVDX Operating Instructions Manual page 285

Step 5: Install Gasket Seal. Two people may be required
to perform this step.
The procedure below is a recommended process. Any suitable method for
achieving a snug inner ring is acceptable.
Follow Fig's 5-1 to 5-12. Surfaces must be clean and dry. Clean away any
excess coupling compound. Do not allow any slack to occur in the gasket
throughout this step. It must remain tight at all times.
Clean and Free of Grease at all times.
contaminated, remove and use acetone to clean.
The Idea here is to seal the exposed gap between the transducers
footprint and the pipe. Wrap the transducer footprint, twice, with the O-
ring gasket material provided, then tie to secure in place. The inner layer
performs the function of seal. The second outer layer protects and backs
up the first.
Install the Housing Covers and remove the spacer bar to complete this
procedure.
Fig 5-1
Feed the gasket
underneath the opening
in the shroud at the back
end of the transducer.
Pull both ends tight
Fig 5-3
Feed the gasket
underneath the
shroud at the
front end of the
transducer.
Maintain
pull
1012WS-1-7
Rev B
Gasket Must Remain
If the gasket should become
Fig 5-2
Use any protruding
hardware to
temporarily tie off
one of the ends
while maintaining
pull on the other
Fig 5-4
Pull tight, then let
go to snap in
place.
Fig 5-5
Temporarily
tie off this end
of gasket.
Loosen
other end of
gasket.
Fig 5-7
Feed the gasket
underneath the
shroud at the
Pull tight, then let
back end of the
go to snap in
transducer.
place.
Fig 5-9
Make a
double
knot
Fig 5-11
Stuff gasket
underneath
transducer.
Fig 5-6
Pull tight, then let
go to snap in
place.
Feed the gasket
underneath the
shroud at the
front end of the
transducer.
Fig 5-8
While keeping
tight, tie both
ends together
Fig 5-10
Cut any excess
gasket material
Fig 5-12
Apply a small
amount of RTV to
prevent gasket
from loosening.
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