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5. Commissioning, operation
Installation with open-ended spanner
EN
For sealing the pressure gauge connections with parallel threads, use flat gaskets,
lens-type sealing rings or WIKA profile sealings at the sealing face
thread (e.g. NPT thread), sealing is made in the thread
als, e.g. PTFE tape (EN 837-2).
The tightening torque depends on the sealing used. In order to orientate the measuring
instrument so that it can be read as well as possible, a connection with LH-RH adjusting
nut or union nut should be used.
Pressure surges must be avoided at all costs, open the shut-off valves slowly.
12
Sealing of the process connection
Spanner flats
Sealing face
WIKA operating instructions model 116.18.02x
. With a tapered
using additional sealing materi-
Sealing in the
thread
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