scope:

This Defence Standard gives the requirements for power driven oil centrifuges in HM Surface Ships and Submarines. It does not cover auto-powered centrifugal filters.

Oil centrifuges are used in lubricating oil, fuel oil and hydraulic oil systems.

Centrifuge installations include:

Oil supply and discharge pumps with associated relief valves. The supply pump may be separately mounted and powered;

Oil suction strainer;

Oil heater, for centrifuges other than fuel centrifuges;

Interconnecting pipework connected to centrifuge (shipbuilder's supply);

Operating water tank and other water supplies with valves and strainers;

Anti-flood tank, for non-self cleaning centrifuges;

Sludge tank (shipbuilder's supply) for self-cleaning centrifuges.

The following installation boundaries apply:

Oil inlet and outlet connections;

Water supplies to operating water tank and centrifuges;

Water outlet from anti-flood tank, for non-self-cleaning centrifuges;

Water and sludge outlets to sludge tank, for self-cleaning centrifuges;

Electrical terminals on starters, controls and instruments.