Once attached to the Fitting, the Compression Actuator Nut
is tightened against the
. This compresses the Elastomer Seal
axially by a predetermined
amount. As the Seal is compressed axially
, it expands radially
against the wall
of the pipe and the Fitting
. This provides an ultra-clean hygienic seal without crevices,
pockets or static zones.
Once the Keyhole™ sensor is installed, any process pressure acts to further compress the
Elastomer Seal, thus strengthening the sealing effect. This is in contrast to
conventional sensor connections where the process pressure acts to separate the
sealing surfaces and weaken the seal integrity.
The Keyhole™ process connection has been tested to over 1000 psig without weakening of the