2020 Tech Report May-June

Task # 2.a.: Performing Float Switch Testing on Vessels with Drain Valve Configurations

ACTION

COMMENT

NOTE: Connection “I” is the liquid inlet end of the transfer hose. NOTE: The connection type may be depen- dent on the Source Valve (hose, pipe, nipple, etc.) Refer to the Transfer Hose Diagram on Page 3 of this Maintenance Procedure if you have any questions. NOTE: Valve “Y” is the purge/drain valve on the transfer hose. Refer to the Transfer Hose Diagram on Page 3 of this Maintenance Procedure if you have any questions. NOTE: Valve “Z” is the shut-off valve on the transfer hose. Refer to the Transfer Hose Diagram on Page 3 of this Maintenance Procedure if you have any questions. NOTE: Valve “X” is the gauge valve on the transfer hose. Refer to the Transfer Hose Diagram on Page 3 of this Maintenance Procedure if you have any questions. NOTE: Connection “P” is the outlet of Valve “Y” (the purge/drain valve) on the transfer hose. Refer to the Transfer Hose Diagram on Page 3 of this Maintenance Procedure if you have any questions.

5.

Attach Connection “I” on the transfer hose to the Source Valve.

6.

Verify that Valve “Y” on the transfer hose is closed.

7.

Verify that Valve “Z” on the transfer hose is closed.

8.

Verify that Valve “X” on the transfer hose is equipped with an ammonia rated pressure gauge (250 PSIG range) and is open.

9.

Attach an ammonia rated purge hose to Connection “P” on the transfer hose.

RETA TECHNICAL REPORT PAGE 7