Fuel Oil Pipe Heat Tracing; Fuel Oil And Lubricating Oil Pipe Spray Shields - Man B&W S80ME-C7 Project Manual

MAN B&W

Fuel Oil Pipe Heat Tracing

The steam tracing of the fuel oil pipes is intended
to operate in two situations:
1. When the circulation pump is running, there
will be a temperature loss in the piping, see
Fig. 7.04.02. This loss is very small, therefore
tracing in this situation is only necessary with
very long fuel supply lines.
The letters refer to list of 'Counterflanges'
Fig. 7.04.03: Fuel oil pipe heat tracing

Fuel Oil and Lubricating Oil Pipe Spray Shields

In order to fulfil IMO regulations, fuel oil and lubri-
cating oil pipe assemblies are to be enclosed by
spray shields as shown in Fig. 7.04.04a and b.
Fig. 7.04.04a: Spray Shields by anti-splashing tape
MAN B&W K108ME-C6, K98MC/MCC, K98ME/ME-C, S90MC-C,
S90ME-C, K90MC-C, K90ME/ME-C, S80MC/MC-C, S80ME-C,
K80MC-C, K80ME-C, S70MC, S/L70MC-C, S/L70ME-C, S60MC,
S/L60MC-C, S/L60ME-C, S60ME-B, S50MC, Engine Selection Guide
2. When the circulation pump is stopped with
heavy fuel oil in the piping and the pipes have
cooled down to engine room temperature, as
it is not possible to pump the heavy fuel oil.
In this situation the fuel oil must be heated to
pumping temperature of about 50 ºC.
To heat the pipe to pumping level we recom-
mend to use 100 watt leaking/meter pipe.
To avoid leaks, the spray shields are to be in-
stalled after pressure testing of the pipe system.
Fig. 7.04.04b: Spray Shields by clamping bands
MAN Diesel
7.04
Page  of 
178 50 625.0
178 52 555.2
198 67 68-4.0