
At the 2026 Turbomachinery and Pump Symposia, John Crane’s Brian Kalfrin explained why volatile natural gas liquids demand custom-engineered seals, from face material selection to installation and flush rates.
RKTM Holdings has acquired Revak Keene Turbomachinery. Founded in 1981, Revak Keene focused on the remanufacture, modification, and upgrade of steam turbines, pumps, and gears. In addition, it manufactures and refurbishes control systems and bearings.






