KCP Heavy Industries Co., Ltd. Maintenance
7-36
7.11.4 Measuring
Follow the operating instructions supplied with the measuring device when carrying out
measurements. Do not measure the wall thickness of the delivery line at just one point, but
around the entire circumference of the delivery pipes. The minimum wall thickness is shown in the
following graph.
Caution _________________________________________________________________
Pipes and elbows must be replaced as soon as the wall thickness has declined to the
value for the minimum wall thickness.
KCP Heavy Industries Co., Ltd. accepts no liability if the wall thickness falls below the
minimum.
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Note ___________________________________________________________________
As a rule it is possible to continue pumping with a lower operating pressure than that
shown in the graph.
We should, however, draw your attention to the fact that the delivery line is subject to
varying loading as a result of the dynamic loading during pumping. There is no general
method for calculating this loading, which depends on the individual circumstances, and
so the delivery line can also burst at an operating pressure that is assumed still to be
permissible.
Furthermore, the operating pressure can rise to 85 bars in the event of blockages,
meaning that the wall thickness will no longer be adequate and the delivery line will burst.
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