ESFR sprinkler is a kind of early fire suppression fusible alloy type quick response sprinkler. The sprinkler has a specially designed splash tray and a variety of flow coefficient options, which enables the sprinkler to spray large diameter, high-energy water droplets and form hemispherical water flow below it. This characteristic allows water droplets to penetrate the flame while cooling the hot air formed in the early stages of a fire, directly cooling the combustion body. Therefore, this nozzle has a special advantage in protecting high stack warehouses. The nozzle is mainly used to protect most common materials in film coated or non peritoneal packaging, including non foaming plastic goods packaged in cardboard boxes, as well as cylindrical packaging paper product warehouses and rubber tire warehouses.