9 JULY 2007
Midland Enhances A-548-TEV Plug Valve
Latest valve design improves bottom outlet valve cycle life and product compatibility
Skokie, ILMidland Manufacturing, the global leader in railroad tank car safety valves and equipment, and a division of OPW Fluid Transfer Group, upgraded its line of plug valves with the A-548-TEV Bottom Outlet Plug Valve. This Midland valve excels in the harsh operating environments of rail tank cars and satisfies the need for a reliable bottom outlet valve that can perform in a broad range of applications from ethanol to vegetable oils, and chemicals.
The A-548-TEV is Association of American Railroads (AAR) approved and is designed to improve sealing performance by utilizing 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. The new TEV PFA-encapsulated Viton O-Rings used on the A-548-TEV offers universal compatibility with most commodities.
The valve's simple vertical plug motion uses a live loaded spring to reduce the probability of a leak in the event of an accident. The internal valve style also reduces the overall installed weight, allowing for less additional required skid protection. By operating with a larger port opening, 4-1/2" rather than the standard 4" opening, the plug valve allows for faster unloading. The triple-seal design of the A-548 makes for a longer service life, lengthening the time between maintenance events.
For more information on the new A-548-TEV Bottom Outlet Plug Valve, please contact your local Midland representative or Kevin Cook, Vice President of Sales & Marketing, at (847) 677-0333.
Midland specializes in products used on pressure and general purpose rail tank cars, chemical cargo tanks and ISO containers for the safe handling of toxic materials, chemicals, and food products: bottom and top loading / unloading valves, pressure relief valves, level gauge devices, and monitoring equipment. Midland is part of The OPW Fluid Transfer Group, that specializes in the safe handling and transfer of hazardous liquids and dry bulk commodities in critical applications such as gasoline, ethanol, diesel, chlorine, chlor-alkali products, LPG, acids, cement, flour and starch, among others. For more information visit www.midlandmfg.net.
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