➩Use Damper butterfly valve series, widely used in metallurgy, building materials, chemical industry,power plants and other industries' ventilation, in environmental engineering including cold or hot gas pipelines are used as the regulator or off-site media devices of the gas flow. ➩Structural features The valve body and disc are made of high-quality carbon steel plate welded together. It has a simple structure, small flow resistance, light weight, flexible rotation, long service life, convenient operation and maintenance and so on ➩Performance Nominal pressure :0.05-0 .1Mpa Rated Corner: 0-90° Ordinary leakage rate:≤3% Backseat type leak rate:≤1% ➩The main technical parameters Normal temperature valve, valve plates: high quality carbon steel welding; shaft: 2Cr13 High temperature valve, butterfly plate: high quality stainless steel welding; shaft: stainless steel; Packing: Flexible graphite. ➩Dimension: mm
