## Fire butterfly valve with UL address:\r\nFire butterfly valve is a type of flow control valve that is used in fire extinguishing piping systems. These valves, with their simple and efficient operation, play an important role in controlling and guiding the flow of water in times of fire.\r\n1. Type of connection:\r\nFirefighting butterfly valves are connected to pipes in two ways: wafer and flange. In the wafer type, the valve is placed between two flanges and is fixed to them using bolts and nuts. In the flange type, the valve has two separate flanges and is directly connected to the pipes.\r\n2. Dimensions and size:\r\nFirefighting butterfly valves are produced in different dimensions and sizes. The most common size of these valves is from 2 inches to 12 inches in pipe diameter. Choosing the right size of butterfly valve depends on various factors such as the amount of water flow required, the pressure of the piping system and the type of fire extinguishing system.\r\n3. Material of body and disc: \r\nThe first factor that determines the price is the material of the body and disc of the butterfly valve. The most common materials are cast iron, stainless steel and PVC. Cast iron is a popular choice in general applications due to its reasonable price and high corrosion resistance. Stainless steel is used for tougher and more specific conditions due to its strength and greater resistance to chemicals. PVC butterfly valves are used in small and temporary fire extinguishing systems due to their light weight and low price.\r\n### types of UL-rated faucets:\r\n1. Gearbox propeller valve\r\n2. Flowswitch\r\n3. Flanged one-way valve\r\n4. Manometer\r\n5. Pressure breaker\r\n**For inquiries and availability, contact us on WhatsApp/Rubika/Ita social networks or contact us.**
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