Fuel Oil Fill, Transfer, and Storage (CG-47): Components

Name of Component Function of Component1 Stop valve, locked shut Isolates the defueling main from the rest of the system2 Main fill valve Controls the flow of fuel from the fill main to all banks3 Motor operated fill valve Isolates the tank bank from the fill and transfer main4 Tank Holds fuel for storage or service5 Purifier Removes water and solids.6 Transfer pump Moves fuel between tanks.

Flowpaths

Best Practices1 Follow OSS procedures2 Ensure all level and pressure alarms are tested3 Ensure no hoses are kinked, or hose connections suspended over water4 Conduct evolutions during normal daylight working hours5 Compute expected flowrate6 Monitor stripping tank sight glass for early indications of fuel entering expansion tanks7 Position topside watches to monitor overboard discharges8 Develop and follow plan for rotation of watchstanders on prolonged evolutions9 Develop a CO approved temporary procedure for any transfer evolution not covered in OSS,

including a highlighted flow diagram10 11

Fuel Oil Service (CG-47): Components

Name of Component Function of Component1 Service tank Stores fuel for use by the system2 Gravity feed tank Normal source of fuel for GTG's3 Suction and recirc valves When open, allows fuel to flow to and from the service tank4 Emergency suction lines Provides emergency fuel to the fuel oil system5 Service pump Moves fuel into the service system6 Heater Heats fuel to correct operating temperature7 Unloading valve Maintains the normal operating pressure8 Prefilter Removes particulate matter from the fuel9 Filter/coalescer Filters out solid particle contamination and removes suspended water10 Module fuel valve Isolates the fuel supply to its GTM

Flowpaths

Best Practices1 Follow OSS procedures2 Ensure that there is sufficient room in the oily waste tank before draining the filter/coalescer when

replacing filter elements3 The oily waste tank can overflow4 Oil floating on water5 During any change to service system configuration6 Both of the above7 Position topside watchstanders

Aviation Fuel Fill, Transfer, and Storage (CG-47): Components

Name of Component Function of Component1 Storage tank Stores JP-5 for transfer to JP-5 service system2 Drain tank Collects contaminated JP-5 and water3 Motor operated fill valve Controls flow of fuel to storage and service tanks4 JP-5 transfer pump Moves JP-5 from storage to service tanks5 Filter/separator Removes solid particles and water from JP-5 fuel6 Small boat refueling service stations Provides JP-5 to small boats7 Refueling station Directs fuel to the JP-5 storage tanks8 Flushing connection Provides a connection point for fueling nozzle

Flowpaths

Best Practices1 Follow OSS procedures2 Verify storage and drain tanks have sufficient room to receive flushed and stripped fuel.3 Ensure all fuel is drained prior to hose disconnection4 Conduct pre-evolution briefing for all evolution personnel, including any non-shipboard personnel5 80

Aviation Fuel Service (CG-47): Components

Name of Component Function of Component1 Service tank Receives filtered JP-5 for delivery to the service systems2 Adjustable pressure regulating valve Maintains a maximum sensing pressure at 100 psig3 Filter/separator Removes solid particles and water from the JP-5 fuel4 Service pump Used to transfer fuel from service tanks to helo

refueling station5 Helo fueling service station Fuels and defuels helos on deck

Flowpaths

Best Practices1 Follow OSS procedures2 Visually inspect all flange connections, valves, and hose assemplies along intended flow path for leaks.3 Align and independently second-check valve positions4 Monitor TLIs5 80

Oily Waste Transfer and Storage (CG-47): Components

Name of Component Function of Component1 Check valve Prevents back flooding of drains and tanks2 Oily water drain tank Receives oily waste water from the machinery drains3 Drainwells/sumps Provides a low point for collection of bilge water4 Oily waste transfer pump Both of the above5 Oily waste holding tank Receives oil from the oily waste transfer pumps6 Oil/water separator Separates oil from waste fluids to be disposed of appropriately7 Oily waste transfer system Supports transfer of oily waste and water for shore disposal

hose connection8 Gas turbine waste drain pump Both of the above9 Gas turbine drain tank Receives oily waste from the gas turbine engines10 Gas turbine drain system Supports transfer of hazardous waste for shore disposal

hose connection

Flowpaths

Best Practices1 Follow OSS procedures2 Develop a CO-approved temporary procedure for any transfer evolution not covered in OSS,

including a highlighted flow diagram3 Conduct evolutions during normal daylight working hours.4 Ensure all level alarms are tested5 Both of the above

Lube Oil Fill, Transfer, and Storage (CG-47 and DDG-51): Components

Name of Component Function of Component1 Storage tank Receives and stores 2190 TEP lubricating oils from the deck fill connections2 Cross-connect valve Controls the flow of lube oil between spaces in the system3 Settling tank Allows used lube oil to stand while water and other impurities settle out4 Purifier Both of the above5 Purifier heater Heats lube oil for centrifugal purification6 MRG Sump Acts as a reservoir for main lube oil system

Flowpaths

Best Practices1 Follow OSS procedures2 Perform the requirements of the lube oil checklist3 Position topside watches to monitor overboard discharges4 Note and annotate all tanks and sump levels before beginning the evolution5 Ensure all locks and lock wire seals are in place6 Develop a CO-approved temporary procedure for any transfer evolution not covered in OSS,

including a highlighted flow diagram7 30

Lube Oil Service (CG-47): Components

Name of Component Function of Component1 Lube oil sump Contains the supply of oil for the lube oil service system2 Attached lube oil pump Provides lube oil to the MRG3 Standby/emergency lube Augments ALOP output at low speeds

oil service pump4 Relief valve Relieves excess pump pressure back to the sump5 Lube oil strainer Strains the MRG lube oil6 Lube oil cooler Maintains lube oil header temperature between 105 F and 115 F7 Unloading valve Unloads lube oil in excess of system requirements8 Main reduction gear Transmits power developed by the propulsion gas turbine engines9 Synthetic lube oil cooler Both of the above

Flowpaths

Best Practices1. Follow OSS procedures2. Carefully monitor sump level3. Visually inspect all mechanical seals and flanged connections4. 27

Main Drainage (CG-47): Components

Name of Component Function of Component1 Eductor Dewater a drainwell or machinery space2 Drainwells Provide a low point for suctioning liquid in the bilge3 Suction check valves Prevent back flooding the machinery space through the eductor4 Actuating valves Control the flow of actuating water from the firemain to each

drainage eductor5 Overboard discharge valves Used for overboard discharge6 Overboard check valves Used for overboard discharge and providing protection from

seawater entering the system7 Cross-connect valves Used as suction cross-connect valves between compartments

on the suction main8 MVHC stations Controls miscellaneous valves in firemain, seawater service, and

drainage system

Flowpaths

Best Practices1 Follow OSS procedures2 Secure eductor immediately than investigate3 Develop CO-approved temporary procedures4 Ensure hose connections are wrapped in plastic5 Properly dispose of waste IAW authorized instructions and policies6 The bilge sump drain well suction valves should be shut7 Both of the above