Model GN202 Grate Nozzles

Low Expansion Synthetic Fluorine Free Foam (SFFF) systems are comprised of various FM Approved and/or UL Listed components to establish a complete package. Included in the package is the FM Approved Model GN202 Grate Nozzle, available in 90°, 180° and 360° variations, with 555 mm, 20" and 26" widths to meet design requirements.

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), offering efficient flammable liquid protection. 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(opens in a new window)! 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!