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Pipe-in-Pipe and Bundle Systems 453
Carrier pipe Insulation
\I Sleeve pipe Small buoyancy
I \ Insulation Flowlines
\
Flowlines Heat-up lines
Conventional Configuration New Configuration
Figure 24.1 Bundle configurations.
24.3.3 Design Requirements for Bundle System
As a minimum requirement, the bundle system is to be designed against the following
potential failure modes:
Service Limit State
Ultimate Limit State
Fatigue Limit State
Accidental Limit State
24.3.4 Bundle Safety Class Definition
The safety class for flowlines, sleeve and carrier pipes may be tabulated below unless
specified by clients.
Table 24.1 Safety Class Defmition for the Bundle
