Formation of pockets of vapour in a liquid that suddenly collapse, causing very high localized pressures which can lead to serious erosion of boundary surfaces.

Source: ISO 14692-1:2017, Petroleum and natural gas industries — Glass-reinforced plastics (GRP) piping — Part 1: Vocabulary, symbols, applications and materials, Second Edition, August 2017. Global Standards


Is when the fluid pressure in the line or vessel drops below the vapor pressure of the liquid being transported resulting in the rapid formation and collapse of vapor bubbles in a flowing liquid.

Source: IADC UBO / MPD Glossary, December 2011. Global Standards

Comments are closed.