John Crane Expands Pipeline Seal Family for Refined and Light Hydrocarbon Products Pipelines


The Type 8628VSC and Type 8648VRS provide the most robust

industry solution to pump reliability and containment


CHICAGO (March 9, 2020) ― John Crane, a global leader in rotating equipment solutions, supplying engineered technologies and services to process industries, today announced the launch of two new products designed for refined and light hydrocarbon products.


The Type 8628VSC, and both new versions of the Type 8648VRS (for flashing and non-flashing hydrocarbon duties) use a non-pusher secondary seal (NPSS) device that that provides the most robust industry solution to secondary seal contamination and hang up.


Product features include:

  • Primary seal combinations for flashing and non-flashing hydrocarbons (8648VRS)
  • Non-contacting secondary seal capable of full pipeline pressure in failure conditions (8628VSC)
  • NPSS made from non-compressible flexible elastomer eliminates secondary seal hang-up
  • Balanced seal designs


In 2017, John Crane launched the 8648VRS crude oil pipeline seal incorporating a unique NPSS providing unbeatable reliability for between bearings-style pumps on crude oil pipelines. Two years later, the company launched the SCB secondary containment device for API Plan 66A containment.


Since launched, the 8648VRS platform has been successfully adopted by almost all major pipeline operators in North America who recognized the sealing challenges created by pump-induced shuttling and abrasive wear when using a conventional pusher seal. These same operators also have thousands of miles of non-crude pipelines transporting finished products and natural gas liquids. Because their non-crude pumps also exhibit similar shuttling challenges, John Crane developed a new solution.


Both new products leverage patented John Crane NPSS technology, providing a robust light hydrocarbon pipeline industry solution, and deliver performance that current competitive offerings are unable to match. In addition, they offer a proven solution to the expanding market for pipeline seals (new pipelines and existing pipeline upgrades).


Learn more about John Crane’s complete family of pipeline seals.






About John Crane

 John Crane is a global leader in rotating equipment solutions, supplying engineered technologies and services to process industries. The company designs and manufactures a variety of products including mechanical seals and systems, couplings, filtration systems and predictive digital monitoring technologies. John Crane customer service is accessed through a global network of more than 200 sales and service facilities in over 50 countries. Fiscal year 2019 revenue was greater than 1.2 Billion USD (£945m). John Crane is part of Smiths Group, a global leader in applying advanced technologies for markets in threat and contraband detection, energy, medical devices, communications, and engineered components.


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