Model GN202 Grate Nozzles are designed to protect aircraft hangars and helipads. They are available with a 360°, 180°, or 90° discharge pattern and 26ʺ, 20ʺ and 555 mm widths to meet design requirements. The grate nozzles are low expansion foam discharge devices that deliver a uniform discharge pattern with a maximum spacing of 50ʹ x 25ʹ (15.2 m x 7.6 m). The nozzles are installed flush with the floor of the protection area within the trench drain. The companion trench drain grate is specially engineered to receive the grate nozzle  and serve as a cover for the drain trench.

SFFF foam calculations are made easy with our LoEx Foam Estimator! Utilize the estimator to calculate the necessary amount of low expansion foam you need for your project. You can estimate ALL the necessary components you need to complete your foam system package, including riser assemblies, discharge devices such as FM Approved Viking sprinklers, foam bladder tanks and more. Once complete, submit your estimated bill of sale to your local Viking SupplyNet. It’s THAT easy!