Start Up System; Monitor System - Flowserve 682-53B System User Instructions

682-53B System
14. As the pressure reduces, during the venting process,
the pressure transmitter (or switch) and it's pressure
alarm setting should be checked (if applicable).
15. Refill the system to the maximum barrier pressure.
16. Repeat steps 12 to 15 until all air has been removed
from the system (normally 3 to 4 times).

7.2 Start up system

Use this procedure to start the system.
Procedure
1. Prior to the start-up, the Installation procedure (refer
to section 6.3) and Set-up system procedure (refer to
section 7.1) must be completed, and signed off by a
qualified person.
2. If a water cooler is installed, apply the cooling water.
Refer to the appendix for the correct piping diameter
and flow rate (normally 25 liter/minute).
3. If a forced draft air cooler is installed, make sure the
motor is electrically connected and the fan is rotating
in correct direction (check rotation arrow). Flowserve
recommends to use a soft starter for the electric motor
of the FDC.
4. Make sure all block valves in the circulating loop are
open (if applicable).
5. Start the external circulation pump (if applicable).
c
DANGER – RISK OF EXPLOSION: Dangerous
chemicals or vapors can leak into the environment if
the sealing fluid is not correctly pressurized. Always
pressurize the barrier fluid before pressurizing the
equipment; also never de-pressurize the barrier
fluid until the equipment has been fully
de-pressurized, and vented.
SSIOM000742-00 (EN/AQ) November 2022
NOTE: For dual pressurized (double) seals, the barrier fluid
pressure must be at least 1.4 bar (minimum requirement
as per API 682) higher than pressure in the seal chamber,
unless otherwise specified in the GA drawing(s).
6. Make sure the barrier fluid is at the correct pressure,
according to the GA drawing(s) in the appendix.
7. Pressurize the equipment in which the seals are installed,
according to the operating procedures of the equipment
manufacturer.
8. Start-up the equipment, according to the operating
procedures of the equipment manufacturer, unless
otherwise specified by Flowserve.
9. Wait until the pump has been running for approximately
15 minutes.
10. Vent the closed loop(s) to remove any residual air. (refer
to section 7.1 point 12 and further).

7.3 Monitor system

Use this procedure to monitor the system.
Procedure
1. Monitor the system for correct operation. Also, refer to
the periodic maintenance tables in section 8.2.
2. Make sure:
• There are no leaks.
• The seals and/or bearings are not running hot.
• There is no cavitation in the system.
• There is no heavy vibration in the system.
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