Why use special flange for butterfly valve?
The utility model has the advantages of quick opening and closing at 90 DEG rotation, simple operation, and good fluid control characteristics. When the butterfly valve is in the fully open position, the butterfly plate thickness is the only resistance when the medium passes through the valve body, so the pressure drop produced by the valve is very small, so the flow control characteristic is better.If the butterfly valve is used as a flow control, the main thing is to correctly select the size and type of valve. Butterfly valve structure and principle, especially suitable for making large-diameter valves. There are two kinds of butterfly valves commonly used: clip type butterfly valve and flanged butterfly valve. The clip type butterfly valve is a double headed bolt connecting the valve between the two pipe flanges.
Because the diameter of flange butterfly and butterfly valve is just DN inner diameter matched a slot in the back, and this is the connection of the steel pipe is inserted into the slot, so as to ensure the sealing effect, but with a flange piece of ordinary cannot guarantee the effective sealing effect.Butterfly valve plate installed in the direction of the diameter of the pipe. Butterfly valve structure is simple, small size, light weight. Consists of only a few components.
The flange type butterfly valve is provided with a flange on the valve, and a bolt is used to connect the flanges at the ends of the valve to the pipe flange.Tianjin Tanggu valve limited liability company founded in 1956, formerly known as Tianjin Tanggu valve factory, the successful restructuring in 2004, the registered capital of 28 million 90 thousand yuan, is a professional manufacturing enterprise design and development, production, installation, sales and service as one of the. Leading products are: Central butterfly valve, flange butterfly valve, metal butterfly valve, gate valve, check valve, hydraulic control valve, micro resistance, slow closing check valve, multi-function water pump control valve and other products. At the same time, the production of different materials, pressure, specifications, driving mode of the control valve, pressure reducing valve and other products, there are more than 50 series, more than 1200 varieties. Annual production capacity of more than 8000 tons. Products covering all parts of the country, and exported to Europe and the United States and other countries, widely used in water supply and drainage, electricity, petrochemical, metallurgy and other industries.
