SYMPOSIA PAPER Published: 01 January 1997

Failure of PTFE-Lined Flexible Hose in Oxygen Service


Polymer lined flexible hoses can be vulnerable in high-pressure oxygen systems. Ignition within a hose occurred after pressurization. The hose was not protected with a distance piece. However, a key factor appears to have been the presence of contaminants of hydrocarbons. The trail of contaminants leading from the ignition point and following the path of flow is shown in the analysis of this failure.

Author Information

Rago, JJ
Air Products & Chemicals Inc., Allentown, PA
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Developed by Committee: G04
Pages: 58–67
DOI: 10.1520/STP12045S
ISBN-EB: 978-0-8031-5372-1
ISBN-13: 978-0-8031-2401-1