Since 1951, Midland has been dedicated to supplying the most reliable valves and level-measurement devices for the railroad market. With an innovative approach to engineering simple designs that meet the most demanding needs, Midland continuously leads the way in shaping the technological evolution of railroad tank car transportation equipment thats safe, reliable and easy to use and maintain. Five decades of real-world experience have resulted in a manufacturing company that anticipates the industrys needs and delivers superior products that help protect workers and the environment. This is Midlands legacy of quality. It starts with intuitive product development that answers the needs of the market without compromise, and continues through Midlands innovative engineering design process. Precision lean manufacturing, using only the highest quality materials, is employed in a flexible, world-class production environment, assuring on-time delivery of your product. Midlands rigid quality control standards, utilizing statistical process control, promise reliable product performance. Every valve and level measurement device is thoroughly tested. After testing, critical components are serialized prior to shipping, making them easily traceable for life. Thanks to Midlands focus on quality and safety, our products meet (and typically exceed) Association of American Railroad (AAR) regulations. Midland is ISO 9001:2008 certified and an AAR Category F registered facility.