fire alarm valve 1.Body: ductile iron 2.Size: 4", 5",6", ... " 3.Type: Wet pilot 4. OEM and ODM available fire alarm valve is a kind of lever-type structure with anti ... , it is made as per GB5135.5-2000 Standard. deluge alarm valve is widely used for various type of dry type ... system(system side pipenet fits open sprinklers), such as deluge alarm system, water curtain system and water mist system.Model no ...