REPAIR AND REPLACEMENT PROCEDURES
COMPONENT REMOVAL AND INSTALLATION PROCEDURES
WBPEEUI110505A0
8 - 9
2. Using the adjustable end wrench, remove the flange adapt-
ers, vent/drain plugs, and pipe plugs from the process flanges
(if supplied, Figs.
).
3. Using the adjustable end wrench, remove four of the pro-
cess flange nuts from the low pressure (-) side of the process
flange (Fig.
4. Remove the process flange studs (Fig.
).
5. Separate the flange from the cell, being careful not to dam-
age the isolating diaphragm (Fig.
).
6. Remove the process and flange adapter (if supplied)
O-rings.
Process Flange Installation (Low Pressure Side Only)
1. Refer to
and determine the proper process and
flange adapter (if supplied, Fig.
) O-rings for the applica-
tion.
2. Coat the O-rings with a film of Dow Corning No. 4 com-
pound and install.
3. Perform Steps 4 through 7 under
.
4. If supplied, install the flange adapters.
5. Torque the flange adapter bolts to 45 to 49 Nm (33 to
37 ft-lbs).
NOTE: If the O-rings are PTFE, tighten to the same torque again
after
five days. This is necessary due to the cold flow properties of
PTFE. Tests have shown that a loss of torque of as much as
40 percent occurs over the five days. After a second tightening, no
loss of torque is apparent.
6. If supplied, wrap the threads of the vent/drain plugs and
pipe plugs with one layer of Tape-Seal using a small overlap.
7. Press the tape into the threads slightly to hold it in place.
8. Install the vent/drain plugs and pipe plugs and tighten
them with the adjustable end wrench.
9. Perform the calibration checks in
to verify the
calibration has not changed.
10. Install the transmitter on the process.
Содержание Platinum standard Series
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