valves seat sealing design, with stable reverse sealing valves sealing rod, automatic pressure relief and locking device Floating ball valves is suitable for industry, petroleum, natural, metallurgy, and other industries It is a sphere with none shaft The sphere is clamped by two valves seats in a " floating " condition Make of Brass and Stainless steel, enduring, firmly and anti-corrosions It is mainly used to cut off, distribute and change the direction of mediums flows on the pipeline, Manufacturer: Xjdzineq