Dt643H pneumatic flexible metal sealing butterfly valve, use a “U”-type stainless steel sealing ring, this ring touch three-dimensional eccentric. Isolated sealing surface when butterfly plate open, sealing when closed, extend using life, good sealing. Widely used in media(temperature≤550℃), like metallurgy, power, petroleum, chemical, air, gas, combustible gas and corrosive media of pipes, for regulating flow and cutting off fluid

Features

1、  simple structure, impact, light weight, easy to install or uninstall, convenient maintenance

2、  this valve use stainless steel “U”-type sealing ring, with good sealing under high, low temperature

3、  distance of three-dimensional eccentric, after rigorous calculation, there almost no friction between “U” sealing ring and butterfly plate, long using life

4、  butterfly sealing surface use Co-based cemented carbide hardfacing, wear resistance, long using life

5、  special structure, “on-off” just need rotate valve stem 90°. Flexible operation, convenient, effort, not affected by media pressure, reliable sealing

6、  high-temperature resistance, low-temperature resistance, anti-corrosion