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Konus Burners, Primary, and Vat Pumps

PP1 - PP2 Primary Pumps

These 1100 GPM, centrifugal pumps are used to supply oil to all
circuits and pumps in the thermal oil loop. This includes flow to the
vat pumps for heating the log ponds, the secondary and counter heat
pumps on the press, the steam generator, and the various heaters
located throughout the plant. The No. 1 Konus will supply suction
fluid to pump No. 1 and Konus No. 2 supplies oil to primary pump No.
2. Please refer to the “Isolation and Change Out Procedure” for the
proper sequence of changing these pumps.

PP3 Stand-By Pump

This 1100 GPM, centrifugal pump is used as a backup for the PP1 or
PP2 pump. Specific manual valves would have to be opened to allow
oil from the specific Konus to flow into the pump suction. When
operating, this pump will supply oil to the vat pump, the press
secondary and counter heat pumps, the steam generator, and
various heaters throughout the plant.

Page 12 Troubleshooting Thermal Oil Systems