Installation Manual - Future Pipe Industries

10. Installation of above ground pipe systems
Above ground pipe systems can roughly be divided into two categories:
a. lines which are laid directly on the ground.
b. lines which are installed on pipe bridges.
In either case the required precautionary measures must be taken to insure the optimum performance of the pipe system.
For support distances see the Wavistrong Engineering Guide.
10.1. Supports
10.1.1. Protection of the pipe
In order to avoid pipe damage by stones and other sharp objects it is advisable to support the pipe, for example
by means of wooden or concrete sleepers. Using these kinds of support, it is necessary to bond a 180° saddle to
the bottom of the pipe at the support locations, in order to protect the pipe against damage caused by possible pipe
movements. The length of this saddle with respect to the width of the support must be 50 mm longer than the calculated
displacement of the pipe. The support width itself must be at least 100 mm. The jointing systems are the same as
those used in underground installations. To avoid sideways displacements a metal clamp is sufficient. The construction
of fixed points is described in chapter 10.2.
Fig. 10.1.a.
10.1.2. Extra supports
To avoid overloading caused by heavy valves, these must be supported separately. When connecting to tanks and
pumps, additional forces and movements caused by pumps and tanks fluctuations must be eliminated. It could be
necessary to include an expansion loop to absorb these movements. If adhesive bonded joints have been used in
expansion loops these joints must be laminated. Overhead installation on pipe bridges requires compliance with the
rules which are also applicable in the previous case of installation on wooden or concrete sleepers. The construction
of fixed points is described in chapter 10.2.
Wavistrong Installation Manual
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