HS-__________ Hand switch on the suction line to P110 B. Open when the pump is operating, closed when the pump is shut down. (local panel)HS-__________ Hand switch on discharge line of P110 A. Open when the pump is operating, closed when pump is shut down. (local panel)HS-__________ Hand switch on discharge line of P110B. Open when pump is operating, closed when pump is shut down. (local panel)TEAL SEAL OIL DRUM D112 The seal drum is the back pressure control device for the TEAL metering drum D110. A level of oil is maintained in D112 to provide for vapor scrubbing for the TEAL system vessels and TEAL cylinder charge lines during nitrogen purging. Normal operating pressure will be about _____ barg. The capacity of this drum is _______ M3 with a design pressure of 0.5 barg.