About OPW Engineered Systems


OPW Engineered Systems is part of the OPW, and is dedicated to designing, manufacturing, and distributing world-class solutions for the safe handling and transport of hazardous bulk products. OPW is part of the Fluids segment within Dover Corporation (NYSE:DOV).

For more than 100 years, the OPW name has been the hallmark of quality, reliability and innovation among the industries it serves. And with heritage like this, OPW is the company you can count on now and in the future for your loading and unloading applications.

ES About usTimeline

  • 1892 Ohio Pattern Works is founded in Cincinnati, Ohio, USA
  • 1916 Ohio Pattern Works is the leading supplier of couplings, valves and nozzles to major oil and chemical companies
  • 1948 G. L. Ohrstrom & Associates acquires company and changes name to OPW
  • 1949 OPW introduces Kamlok® cam and groove quick-disconnect coupling
  • 1960 Dover Corporation acquires OPW
  • 1961 Kamvalok® dry disconnect coupling is the result of OPW's pioneering efforts to reduce liquid product loss
  • 1983 OPW reorganized into three separate business units; OPW Engineered Systems, OPW Fluid Handling, and OPW Fueling Components
  • 1988 OPW splits three business units into three distinct companies
  • 1989 OPW Fluid Handling changes its name to CIVACON (Cincinnati Valve and Control)
  • 1999 OPW relocates Civacon Cincinnati, Ohio facility to Kansas City. Kamlok®, Autolok™, Kamvalok®, and Drylok™ are moved to OPW Engineered Systems in Lebanon, Ohio
  • 2001 OPW Fluid Transfer Group was formed to include OPW-ES, Civacon/Knappco, Midland Manufacturing and OPW Fluid Transfer Group Europe B.V.
  • 2006 Acquired the Epsilon dry disconnect product line from Eaton Corp.
  • 2009 OPW acquires Hiltap Fittings, a leading supplier of high/low pressure and temperature fittings
  • 2013 OPW Fueling Components, combines with OPW Fluid Transfer Group to form one global company, focused on the distribution and transportation of critical fluids and fuels
  • 2013 OPW acquires Lianyungang Jump Petroleum Chemical Machine Co. Ltd