D343H, D343Y-type-PN6 ~ PN40-double eccentric PTFE sealed butterfly valve

Double eccentric butterfly valve is also called high-performance butterfly valve. It is mainly used in waterworks, power plant, steelmaking, chemical industry, water source engineering and environmental facilities construction. It is especially suitable for waterway piping and used as regulating and blocking equipment. And compared to the butterfly valve, double eccentric butterfly valve is more resistant to high pressure, longer life, good stability.

Double eccentric butterfly valve is also called high-performance butterfly valve. It is mainly used in waterworks, power plant, steelmaking, chemical industry, water source engineering and environmental facilities construction. It is especially suitable for waterway piping and used as regulating and blocking equipment. And compared to the butterfly valve, double eccentric butterfly valve is more resistant to high pressure, longer life, good stability. The larger the caliber, the lighter the material and the lower the cost compared to other valves. However, due to the middle of the butterfly plate, flow resistance, so less than DN200 butterfly valve is not very meaningful.

Double eccentric butterfly valve in a single eccentric butterfly valve on the basis of further improvement. The structure is characterized in that the stem axis deviates from the center of the disc and from the center of the body. Double eccentric effect so that the valve is opened after the disc can quickly from the valve seat, a significant degree of elimination of the butterfly plate and the seat of the unnecessary excessive squeeze, scraping phenomenon, reducing the open resistance, reducing wear and improve The seat life. Scraping a significant reduction, but also makes the double eccentric butterfly valve can also use metal seats, increased butterfly valve in the field of high temperature applications.

1 design is reasonable, compact, easy assembly and disassembly, easy maintenance.

2 eccentric structure, reducing the friction ring to extend valve life.

3 completely sealed, leakage is zero. Can be used for ultra-high vacuum conditions

4 replace the valve plate seals, disc, shaft and other materials, applicable to a variety of media and different temperatures