The range of Emergency Valves offered by Emco Wheaton have been designed to ensure high flow and durability, whilst being easy to maintain. These reliable flow efficient internal valves are offered with mechanical or pneumatic control, and normal, intermediate, or low profile design to meet the fitment needs of all truck builders the world over. Sequenced operation was introduced into the emergency valves by Emco Wheaton and is now a standard feature of all our pneumatic emergency valves. A robust design and stringent quality control ensures a long and trouble free operational life.