Refill Barrier Fluid; Change Barrier Fluid - Flowserve 682-53B System User Instructions

682-53B System
1. Use the installed pressure indicator/transmitter-with-
display to check the barrier fluid pressure. The barrier
pressure shall be between the minimum and maximum
pressure settings. Refer to the GA drawing(s) in the
appendix for the correct setting.
2. If the barrier fluid pressure is below the minimum
pressure setting, you must refill the barrier fluid.

8.4 Refill barrier fluid

Use this procedure to refill the barrier fluid.
NOTE: The barrier fluid can be filled while the seal pump
is running, you will have to connect a refill unit.
NOTE: The barrier fluid type is specified on the GA
Drawing(s). A Flowserve representative can supply
information on barrier fluid, temperature and flow
requirements based on product type, seal size and
product temperature.
Procedure
ú
WARNING – HOT SURFACES: The system and
STOP
surrounding surfaces might be hot. Take care
when touching components. Wear the appropriate
Personnel Protection Equipment (PPE), according
to plant regulations
1. Connect a refill unit.
2. Slowly open the shutoff valve(s) in the filling line.
a
CAUTION – EQUIPMENT OR PRODUCT DAMAGE:
Dirty or incorrect barrier fluid can damage the
equipment or product. Make sure the barrier fluid
is correct for the product being processed. Do not
over pressurize the system.
SSIOM000742-00 (EN/AQ) November 2022
3. Use the refill unit to fill the system until the maximum
barrier pressure is reached. Refer to the for the correct
setting in the GA drawing(s) in the appendix.
4. Close the shutoff valve(s).
5. Unpressurize the line between refill unit and 682-53B
and disconnect the refill unit.

8.5 Change barrier fluid

Use this procedure to change the barrier fluid. The
barrier fluid should be changed once a year or when it is
contaminated.
Procedure
1. Check the process conditions to see if the equipment
(in which the seals are installed) can be stopped.
2. Stop the equipment (including the pump), according to
plant regulations, as described in chapter 7.4.
3. De-pressurize the equipment, according to plant
regulations.
4. De-pressurize the 682-53B system, and open the drain
valve.
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