Product Name: Water Foam Sprinkler for Fire Foam System Model NO.: PTW Wet Alarm Valve Structure: Seat Type Closed Fire Sprinkler System: Wet Fire Sprinkler System Automatically Opened and Closed Repeatedly: Can't Automatically Opened and Closed Alarm Valve Type: Wet Alarm Valve Sprinkler Head Type: Open Sprinkler Installation: Ordinary Norminal Diameter(mm): 15mm/20mm/25mm Material: Brass/Stainless Steel Working Pressure: 0.3-0.6MPa Flow of Mixture Liquid: 0.9L/S, 1.2L/S, 1.5L/S, 1.75L/S Foam Expansion: More Than 5 Installation Height: More Than 2.5m Trademark: SINCO or OEM Transport Package: Standard Export Package Specification: 1/2" 3/4" 1" Origin: Quanzhou, Fujian HS Code: 8424 Product Description Water Foam Sprinkler For fire foam systemIntroductionThe foam sprinkler is a special fire extinguishing parts mainly used in low-expansion foam spray system which can produce and jet air bubble. Foam proportionate system supply foam solution for these nozzles. Whenfoam solutionwasconveyed to nozzlesby pipelines, the nozzleinhalesairatoutletto makefoamsandput out fire.Working PrincipleWhen pressurizedfoam solution flowsthrough thecavity of the nozzle, its pressure will be reduced because of throttling. That willresult in vacuum and inhale air. The foam solution then become foams afterdispersed by nozzle.Technical ParametersSizeWorking pressureFlow of mixture liquidFlow parameterFoam expansionInstallation heightConnecting threadMpaL/SL/STimesmInchPTW0.90.3-0.60.927≥6≥2.51/2"3/4"1"PTW1.21.236PTW1.51.545PTW1.751.7553PhotoesOther Firefighting Equipment