The Red Devil portable vaneaxial fan, developed to provide emergency ventilation, has been used by the U.S. Navy, the U.S. Coast Guard and foreign navies for over 50 years. Designed to meet the extremely strict specifications of Mil-V-24761(ships), the Red Devil has been sold under the Blowers, LLC name (formerly Clements National) since 1945. Anyone who has served aboard a U.S. Naval vessel is familiar with the Red Devil, which is used on every ship in the U.S. Navy, even the latest most sophisticated submarines. NSN 4140-00-267-0967 FEATURES Designed to meet military specifications for operation in Class 1 Group D atmospheres which contain gasoline, petroleum, naptha, alcohol, acetone, lacquer, solvent vapors, and natural gas.The unit is shipped complete, ready to use, with an explosion proof switch box and 50 power cord complete with standard plug.The Inlet Bell and Outlet Transition are reversible to allow the fan to be used as either a blower or exhauster.Outlet fitting is designed to accept the Standard Navy 8 diameter duct connectors. 8 dia. x 15 duct is also available from Blowers, Inc. Complete with connectors and duct carrier.OPERATING SPECIFICATIONS 1100 CFM Free Flow Air Volume630 CFM Air Flow at 2.50 Static Pressure4.7 Average Amp Draw