Specifications<\/h2>\n
1. Valve body material: galvanized pipe;
\n2. Size: 4 inches and 6 inches;
\n3. Outlet valve material: brass;
\n4. Connectors: STORZ, NH, John Morris, GOST, Machino, etc.
\n5. Surface treatment: spray painting.<\/p>\n
Application places<\/h2>\n
1. Petrochemical enterprises, refineries, large oil tank areas, hangars and other areas where flammable liquids are concentrated.
\n2. Underground projects, tunnels, gas stations, small oil depots, garages and warehouses.<\/p>\n
Working principle<\/h2>\n
1. Mixing stage: Pressurized water (\u22650.6MPa) flows through the proportioning mixer at high speed to form a negative pressure zone, sucking in the foam liquid and mixing it with water at a ratio of 3%.
\n2. Spraying stage: The mixed liquid is transported to the foam gun\/cannon through a hose, and after foaming, it covers the surface of the burning object, forming a water film to isolate oxygen, and achieve double fire extinguishing (foam covering + suffocation effect).<\/p>\n
Features<\/h2>\n
1. High-efficiency fire extinguishing: The fire extinguishing effect of aqueous film-forming foam (AFFF) is 2~3 times that of protein foam, and the storage life is up to 12 years.
\n2. Corrosion-resistant design: The key components are made of stainless steel ball valve + highly corrosion-resistant materials, and the lubrication chamber is designed to prevent rust and die, ensuring long-term maintenance-free.
\n3. Sealing optimization: The valve plate is self-sealed with the help of medium pressure (the higher the pressure, the stronger the seal), eliminating leakage.
\n4. Dual-mode compatibility: Supports single-gun fire extinguishing or dual-port connection mobile foam cannon, and flexibly responds to the scale of the fire.<\/p>\n
Working pressure<\/h2>\n
0.5~0.8MPa<\/p>\n
![\"Foam](\"https:\/\/www.cnbaianfire.com\/wp-content\/uploads\/2025\/06\/Foam-Hydrant.webp\")
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