... equipment) 1.Material: Cast Iron 2.Size: DN100mm, 150mm,200mm3.Type: Deluge valve4.Automatic Hydraulic Operated Nominal diameter: 100mm, 150mm, ... fire deluge valve for fire prevention is a kind of lever-type structure with anti-reset function, deluge sprinkler system is ... widely used for various type of dry type system, such as deluge alarm system, water curtain ...