Gaskets - Emerson Rosemount 1199 Reference Manual

Reference Manual
00809-0100-4002
3.2

Gaskets

WARNING
When installing remote 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.
The user is responsible to ensure the gasket used does not exceed the temperature limits
of the process. Failure to properly install the gasket may cause process leaks, which can
result in death or serious injury.
In addition, 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.
The intermediate gasket between the seal and lower housing is supplied when the lower
housing or flushing connection is provided. The default gaskets are listed in
based on seal type. The process gasket must be supplied by the end user. Tantalum
diaphragms are not supplied with default gasket, so a gasket option must be selected
when applicable.
If a lower housing is supplied, then the following gaskets are the default gaskets for each
seal unless another gasket option is selected.
Table 3-1: Gasket Materials
Seal type
Flanged seals assemblies
FFW
RFW
EFW
PFW
FCW
RCW
FUW/FVW
Threaded seal assemblies
RTW
HTS
Hygienic seal assemblies
SCW
SSW
STW
EES
(1)
VCS
(1)
SVS
Rosemount DP Level
Gaskets
®
Thermo-Tork
Klinger C-4401
No gasket is supplied
Thermo-Tork TN-9000
No gasket is supplied
Klinger C-4401
No gasket is supplied
Klinger C-4401
No gasket is supplied
(1)
No gasket is supplied
Ethylene propylene O-ring
Ethylene propylene O-ring
No gasket is supplied
No gasket is supplied
No gasket is supplied
TN-9000
Installation
May 2020
Table 3-1
25