Corken’s New Propane Railcar Offloading System Leaves No Propane Behind™

Company News
September 1, 2020

Corken, Inc., a unit of IDEX Corporation (NYSE: IEX) announced today the release of the world’s first propane unloading compressor system designed to fully evacuate propane from railcars during offloading, saving up to $3.5M over the lifetime of a system. While conventional unloading systems abandon the final 230-400 gallons of propane in each railcar due to their inability to overcome the vapor pressure (30-40 PSIG) during the final stage of transfer, Corken’s new Propane Miser™ is the first PLC-controlled two-stage compressor system that effectively overcomes this barrier, safely and quickly achieving evacuation as low as 0 PSIG.

“Our team observed customers paying for millions of gallons of propane that they never actually get,” explains Art Laszlo, Corken President. “We felt it was our responsibility to engineer a system to solve that problem and the Propane Miser will do just that,” said Laszlo.

With up to 25% faster throughput and deeper evacuation than conventional compressors, terminal operators can optimize the Propane Miser to evacuate faster, deeper, or both depending on operational circumstances. As an example, a terminal operator who unloads 1,000 railcars per year, pays $.60 per gallon, and normally stops their unloading at 40 PSIG stands to save $250,000 per year.

“Our patent pending control system combined with the proven Corken D791 two-stage compressor resulted in what will be the most impactful solution in terms of operational savings that our industry has seen in decades,” said Blake Wallace, Senior Engineer.

The Propane Miser was officially launched on September 1, 2020. Visit to use our Railcar Offloading Business Opti-MISER to calculate the potential savings Propane Miser could save your company.

Contact Corken at for more information or to be introduced to an authorized distributor in your area.


Founded in 1924, Corken’s exceptional reputation is built upon nearly 100 years of maintaining the highest quality products and customer service. This combined with a strong commitment to technological innovation has positioned Corken as a global leader in compression and pumping solutions. As a leading manufacturer of industrial compressors, pumps, bypass valves, and accessories, Corken specializes in custom compressor and pump skids designed for liquefied gas transfer, liquid transfer, air boosting, and vapor recovery applications for the process gas, energy, and transport industries.

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