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Konus Burners, Primary, and Vat Pumps

18 Manual Valve

During normal operation this valve is open. In the emergency mode
of operation the EV1 valve will open allowing flow through valve No.
18 then to the VP1 suction port. When necessary to isolate or change
the No. 1 vat pump this valve should be closed. Please refer to the
“Isolation and Change Out Procedure for the No. 1 Vat Pump” for the
opening and closing of this valve.

21 Manual Valve

During normal operation this valve is open. In the emergency mode
of operation the EV2 valve will open allowing flow through valve No.
21 then to the VP2 suction port. When necessary to isolate or change
the No. 2 vat pump this valve should be closed. Please refer to the
“Isolation and Change Out Procedure for the No. 2 Vat Pump” for the
opening and closing of this valve.

22 Manual Valve

This valve is located at the outlet port of the No. 2 vat pump. During
normal operation this valve is open. Please refer to the “Isolation and
Change Out Procedure for the No. 2 Vat Pump” in the Miscellaneous
Section of this manual for the opening and closing of this valve.

23 Manual Valve

During normal operation, the valve should be in the closed position.
When necessary to change the VP1 pump, this valve should be
opened to allow the fluid to be ported back to the drain tank by the
drain pump. Please refer to the “Isolation and Change Out
Procedure” for the sequence that this valve is opened and closed.

Page 20 Troubleshooting Thermal Oil Systems