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Inside of the Teflon Liner

Reflected Darkfield Illumination


Hydrocarbon or fluorocarbon fluids flowing through Teflon tubes can create very high static charges. In this case kerosene was flowing through a wire-braid hose with a Teflon liner. The static charge built up on the interior of the Teflon surface and then discharged to the wire braid on the outside of the tube. The discharge created a hole through the Teflon liner and the glass fiber insulation on the outside of the Teflon. The result was the formation of a leak. There were a number of these discharges so the leak became significant.

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The discharge path can be seen in the lower part of the third channel from the left.