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

Oklahoma City, OK, 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 $200,000 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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IDEX (NYSE: IEX) is a company that has undoubtedly touched your life in some way. In fact, we make thousands of products that are mission critical components in everyday activities. If you or a family member is battling cancer or another life-threatening disease, your doctor may have tested your DNA in a quest to find the best targeted medicine for you. It’s likely your DNA test was run on equipment that contains components made by our IDEX Health & Science team. You can enjoy fresh fruits and vegetables thanks in part to Banjo, an IDEX company. Banjo valves are used on the agriculture sprayers that apply nutrients on crops. And if you were ever in a car accident, the Hurst Jaws of Life®/LUKAS® tool may have rescued you.

Founded in 1988 with three small, entrepreneurial manufacturing companies, we’re proud to say that we now call 40 diverse businesses around the world part of the IDEX family. With 7,000 employees and manufacturing operations in more than 20 countries, IDEX is a high-performing, global $2+ billion company committed to making trusted solutions that improve lives. For more information, visit

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Editor’s Note: For additional information or to schedule executive interviews, please contact Dan Clevenger, Corken, Inc., 9201 North I-35 Service Road, Oklahoma City, OK. 73131;

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Media Contacts

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