The Viking Model GN200/360 Grate Nozzle® is designed for the protection of aircraft hangars and helipads. The Grate Nozzle® is an AFFF foam discharge device located at the floor level of an aircraft hangar or helipad in trench drains. The top of the nozzle grate must be flush or level with floor it is protecting. The Grate Nozzle® is designed to discharge foam solution in a 360° (GN200/360) radius. The Grate Nozzle® is designed to provide uniform discharge with a maximum spacing of 50’ x 25’ (15.2 m x 7.6 m). The companion Model 1120 or Model 1126 trench drain grate is specially engineered to receive the Grate Nozzle® and serve as a cover for the drain trench.