Midland Manufacturing, a division of OPW Fluid Transfer Group, has upgraded its line of plug valves with the A-548-TEV Bottom outlet plug valve. This Midland valve is suitable in the harsh operating environments of rail tank cars and satisfies the need for a bottom outlet valve that can perform in a broad range of applications from ethanol to vegetable oils, and chemicals. The A-548-TEV is approved by the Association of American Railroads (AAR) and is designed to improve sealing performance by using dual O-Ring seals and a metal-to-metal seal, guaranteeing positive shutoff. A wide variety of O-Ring materials are available, including PFA encapsulated O-Rings which offer universal compatibility with most commodities, including ethanol and petroleum products. The A-548 Plug valve mounts to the AAR Standard Universal Saddle, and allows conversion from plug valves to ball valves without needing to change the saddle.