The louver valve is mainly divided into manual and electric. It consists of a valve plate, a valve body, an output shaft, and a drive mechanism. Its structure is a multi-shaft and multi-blade structure. It is used for gas pipelines. It can cut off, open or adjust the gas according to instructions The material is generally high-quality steel plate under normal temperature working condition, and heat-resistant steel under high temperature working condition. It has the characteristics of sensitive and reliable adjustment and low leakage rate. Temperature≤350℃, shell and valve plate material is Q235A, shaft is 45# steel; temperature is 350℃~450℃, valve plate is stainless steel, shaft is 45# steel, shell is boiler steel; temperature is 450℃~ At 600℃, the valve plate, shaft and shell are all stainless steel; the temperature is 600℃~800℃, the valve plate and shaft are made of 2520 material, castable inside, and the shell is boiler steel.
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