CDOIF Guidance

Safety and environmental standards for fuel storage sites

Final report

196 It is important to note that this arrangement acts as an anchor for the pipe. When it is used

the pipe arrangement between this anchor and the tank nozzle should allow sufficient flexibility to

ensure forces on both the bund wall and tank shell are minimised and within design limits.

197 This is relatively easy to achieve for smaller pipe sizes (<16”) and for new terminals where

flexible pipe routing can be designed. For larger line sizes with greater temperature variations this

design may not be workable, particularly for existing terminals with short distances between the

tank and bund wall, where expansion loops cannot easily be added to the pipe layout. Under these

circumstances alternative arrangements which allow for some movement of the pipe may need to

be considered as seen in Figures 6, 7 and 8.

Figure 6

Detail for earth bund wall penetration

Figure 7

Detaill for concrete bund wall penetration

DETAIL FOR EARTH BUND

WALL PENETRATION

Metal split collar

fire protection plates

(removable)

Sleeve

Modular bolt compressible seal

(inside face of bund wall)

DETAIL FOR CONCRETE BUND

WALL PENETRATION

Modular bolt compressible

seal (inside face

of bund wall)

Jacket pipe

Concrete wall

TANKPIT SIDE

Metal split fire protection

plates (removeable)