The valve fitting floating ball valve is easy to maintain, the sealing surface and the spherical surface are often closed, difficult to be washed by the medium, and easy to operate and maintain. It is suitable for general working media such as water, solvent, acid and natural gas, and is also suitable for working conditions. Medium, such as oxygen, hydrogen peroxide, methane and ethylene, is widely used in various industries.
In the structural composition of the valve fitting floating ball valve, the main function of the valve locking device portion is to prevent erroneous operation. The function of the stem anti-flying structure is that when the medium passes through the valve, the pressure in the cavity of the valve body may push the valve stem out. To prevent this from happening, a boss structure is placed under the valve stem. In this way, even in case of fire, the filler, the thrust bearing is burnt or other reasons cause damage to the packing, etc., the medium pressure in the valve body will make the valve stem boss and the valve body tightly contact with each other to prevent the medium from leaking from the damaged filler. .
In addition, in the structural design, the valve fitting floating ball valve is also equipped with an anti-static device, a fireproof structure, a central flange without leakage structure and an automatic pressure relief structure to ensure the safety of the valve.http://www.dmgcastings.com/