2 CF O

3 CF O

ForePeak

AfterPeak

1 SF W

1 PF W

F OService Tk

F OSettling Tk

BilgeHolding Tk

Coffer Dam (Void Space)

Lube OilStorage Tk

2 W PW B

2 W SW B

3 W PW B

3 W SW B

EngineRoom Hold HoldHold

SteeringFlat

Double Bottom Tks

ForePeakAfter

Peak

F O = Fuel Oil

W B = Water Ballast

F W = Fresh Water

C = Centre

S = Starboard

P = Port

W S = Wing Starboard

W P = Wing Port

Free standing tanks have sight glasses. Under no circumstances should the self-closing cocks be held open against the spring pressure whilst unattended

Globe Valves

Gate Valves

Butterfly Valves

Hinged Flap Valve

Relief Valve

There are two basic types of globe valves: screw lift (SL) valves; and

screw down non-return (SDNR) valves.

Centrifugal

Reciprocating

Gear

Screw

Hand

Symbol Description

Pump: with the arrow showing the direction of the pump.

Strainer or filter.

Pipe Cross Over: the pipes are not connected.

Pipe connection.

SYMBOL NAME

Screw Lift (SL) Valve

Butterfly Valve

Gate Valve

Screw Down Non-Return (SDNR)Valve

Non-Return Valve

Flap, or Swing Valve

Pressure Reducing Valve

Relief Valve

Self-closing Valve

Quick closing Valve

Cock