Efw Extended Flanged Seal - Emerson Rosemount 1199 Reference Manual

Installation
May 2020
5. Using a torque wrench on the nut, tighten the assembly in a cross-pattern to ensure
6. Remove the protective cover from the diaphragm of the remote seal. Use extreme
7. Assemble the remote seal, Emerson-supplied gasket, and lower housing. Place the
8. Install the bolts in a cross pattern and hand-tighten.
9. Using a torque wrench on the bolt, tighten the assembly in a cross-pattern to
3.7

EFW extended flanged seal

Figure 3-10: EFW Extended Flanged Seal Assembly
A. Process flange
B. Extension
C. Diaphragm
D. Connection to transmitter
Note
Flushing ring/lower housing not available for EFW extended flanged seal.
34
even installation (see Torque
applicable flange requirements.
caution during installation to ensure the diaphragm is not damaged.
Emerson-supplied gasket inside the recessed cavity within the lower housing which
is designed to hold the gasket in place.
WARNING
Failure to properly install the gasket may cause process leaks, which can result in
death or serious injury.
ensure even installation (see
Table 3-2 based on size and bolt material. Consider leak checking the installation to
ensure a robust connection.
A
B
sequence). The nuts should be torqued to the
Torque sequence). The bolts should be torqued per
C
Reference Manual
00809-0100-4002
D
C
Rosemount DP Level