John Crane solves ethane, ethylene multiphase pipeline challenges

JOHN Crane has launched the Type 8628VL, a next generation mechanical seal engineered to solve the oil and gas industry's toughest challenges regarding maintaining sealing integrity in multiphase ethane and ethylene pipelines.

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Designed to perform under volatile pressure and temperature conditions, the Type 8628VL leverages spiral groove non-contacting technology to deliver exceptional reliability, operational efficiency, and environmental compliance.

Ethane pipelines present unique challenges due to frequent fluid phases shift from liquid to vapour to supercritical, which can compromise conventional seal performance.

The Type 8628VL addresses this by employing dual non-contacting seal faces in a tandem configuration, a design validated by peer-reviewed Lubricants (MDPI) research.