About Midland

Midland About Us


For more than 60 years, Midland has been dedicated to protecting people and the environment worldwide by ensuring the safe transportation of products by rail. With an innovative approach to engineering and solutions, Midland consistently exceeds railcar industry operational standards for valves by developing and providing the safest and most reliable solutions.

Midland offers the broadest range of products amongst all tank-car-fitting suppliers on the planet. Its team of engineering specialists and technical-service professionals continually develops innovative products for any application in partnership with its customers and industry associations. Because of this approach, Midland products are recognized worldwide for performance, reliability and quality.


Leaders in Railcar-Equipment Innovation

Midland takes pride in leading the way in railcar-equipment innovation through the design of products that protect workers, equipment and the environment. No matter the difficulty of your fluid-transfer challenge, Midland will work tirelessly to deliver safe, reliable and cost-effective solutions.

General Purpose Railcar
  • Pressure Relief Valves
  • Bottom Outlet Ball Valves
  • Bottom Outlet Plug Valves
  • Tanktite® Detachable Handle
  • Vacuum Relief Valves
  • Gaging Devices
  • Rupture Disc Devices
Pressure Car
  • Gaging Devices
  • Top-Transfer Angle Valves
  • BPressure Relief Valves
  • Check Valves
  • A-719-ML/A-190 Dual-Valve System
  • Pressure Railcar Accessories
Remanufacturing & Repair

Midland’s efficient remanufacturing and repair services for railcar valves offer:

  • Cost-efficiency and quick turnaround
  • Technical know-how of highly trained staff
  • Rigorous inspection, cleaning, testing and tracking
  • Comprehensive historical valve-performance data upon request
  • Reduced risk of sanctions through targeted regulatory compliance
  • Brand new warranties

Midland’s Remanufacturing & Repair Program is available at its Skokie, IL, and Houston, TX, facilities.



Defining What's Next

The OPW Defining What’s Next philosophy is focused on constantly striving to develop technologies for the reliable and efficient handling of the world’s most essential fluids in order to enhance the quality of life for people, the environment and its clients around the globe. This is more than a tagline, however. This mission drives OPW and its business units to be good corporate citizens through the implementation of Environmental & Social Governance (ESG) operating principles.

OPW’s business units, including Midland, have been committed to Defining What’s Next for the commodity transportation operations of their clients from the beginning. Learn more about our journey at the link below.

Defining What's Next