Section
2-1
2 Installation
This section contains installation information for various types of
Model 1199 Diaphragm Seals including:
Seals Handling and Installation Considerations
Tagging
Flanged Type Seals
Pancake Type Seals
Threaded Type Seals
Saddle Seals
In-Line Flow-Through Seals
Sanitary Tank Spud Seals
Sanitary Tri-Clamp Seals.
Sanitary Threaded Type Seals
Additional specialized diaphragm seals are available. Contact
Rosemount Diaphragm Seal Support for installation information on
these seals.
Seals Handling and
installation Considerations
When unpacking or handling a transmitter/seal system, do not lift the
seal or transmitter by gripping the capillaries.
Avoid sharply bending or crimping the capillary tubing. The minimum
bending radius of the capillary tubing is three inches (8 centimeters).
NOTE
NEVER attempt to disconnect the seals or capillaries from the
transmitter. Doing so will result in loss of fill fluid and will void the
product warranty.
The material of a diaphragm seal is designed to withstand pressure and
wear from process material, but outside of process connection
conditions, diaphragm seals are relatively delicate and should be
handled with care.
The protective cover should remain on the seal until the moment before
installation. Try to avoid touching the diaphragm with fingers or
objects and refrain from setting the diaphragm side of the seal down on
a hard surface. Even minor dents or scratches in the diaphragm
material may impair the performance of the transmitter/seal system.
When installing diaphragm seal systems which employ a gasket or a
gasket and flushing connection ring, make sure the gasket is aligned
properly on the gasket sealing surface.
Most importantly, make sure the gasket does not press down upon the
diaphragm face. Anything pressing on the diaphragm will be read by
the transmitter as pressure. A misaligned gasket may cause a false
reading.
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