ZSDY concealed sprinkler is composed of nozzle frame, temperature sensing element, sealing element, splashing disc, etc. The nozzle frame is made of precision forging of copper alloy and chrome polishing of outer surface, which makes it have high frame strength. It has the characteristics of strong corrosion resistance and beautiful appearance. Operating temperature: 68 ° C, flow coefficient; k = 80 ± 4. Connecting thread: R = 1/2. Low melting point welding is used between the decorative sheet and the bracket (melting temperature 54 ° C ≤ t ≥ 60 ° C). The nozzles are all concealed in the decorative sheet. When a fire occurs, the low melting point weld metal between the decorative sheet holders is first melted and the decorative sheet is peeled off. When the temperature of the glass ball reaches the operating temperature, the glass ball is blasted and the nozzle is sprinkled.
Concealed sprinklers: can be installed in places with luxurious decoration and beautiful appearance, such as high-end hotels, hotels, entertainment venues or places with limited ceiling clearance, as well as places with large traffic, frequent cargo transportation and easy to break.
Product standard basis: CB5135.1-2003 "Automatic sprinkler system Part 1: Sprinkler"
