Butterfly valve with disc type opening and closing a reciprocating swing around 90 ° to open and close or adjusting medium flow of a valve. Butterfly valve is not only simple structure, small volume, light weight, material consumption province, small installation size, driving moment, simple operation, rapid, and can also have a good flow regulating function at the same time and close the seal characteristics, is one of the fastest growing valves varieties in last decade. Seal butterfly valve according to the form can be divided into hard sealing butterfly valve and soft sealing butterfly valve, hard seal butterfly valve is widely used in furnace, gas, steam, natural gas, city gas, cold hot air smelting, chemical engineering and power environmental protection system in all kinds of corrosive fluid pipe, non corrosive, used to adjust and block the flow of the medium. With the wide use of hard seal butterfly Industrial Valves, also with the problem, problem analysis to hard seal butterfly valve are as follows: first, because of the multilayer soft fold type sealing ring is fixed on the valve plate, when the Industrial Valves plate normally open state media on the sealing surface to form positive scour, soft sealing strip of metal sandwich after flushing, directly affect the sealing performance. Second, restricted by structure condition of the structure does not adapt to do below path DN200 valves, because the valve plate structure is too thick, large flow resistance. Third, because of the principle of triple eccentric structure, between the sealing surface of valve plate and valve seat sealing is to rely on the drive torque valve plate pressure to the valve seat. Is flow state, the higher the medium pressure seal compression tight. When the countercurrent flow medium with the increase of medium pressure valve plate and valve seat unit is less than the pressure medium, the positive pressure between seal began to leak.
is frequently used by people in daily life since it can improve resilient seal gate valve and os&y valve.
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With a complete manufacturing plant, Shenzhen Mech Valve Trading Co., Ltd. is able to meet the most stringent specifications, no matter the type of product. A dedicated team of experts handle these value-added services, ensuring that customer needs are met on time, consistently monitoring quality and performance of rising stem gate valve to the highest international standards. Visit Mech Valve to learn more.