Ball valve

with handwheelpneumaticelectric

The eccentric hemispherical valve uses an eccentric valve body, an eccentric sphere and a valve seat, and the valve stem is automatically centered on a common trajectory when it rotates, and the tighter the closing process, the tighter the closing process 1. Its structure adopts the principle of eccentric tightness. The purpose of gate tightness, adjustment and closing is achieved through the transmission mechanism. The sealing pair is a metal surface ring with hard surface contact seal. , and the valve is not flushed, the valve core is not flushed when it is closed, and the spherical surface of the valve core gradually progresses along the valve seat when it is opened, effectively removing fouling obstacles and achieving reliable sealing. It is especially effective for the mixed flow conveying of the two-phase mixed flow and the precipitation of fouling-prone solids. 2. The hemisphere of the valve is made of bimetal, the base metal is surfacing with different alloys, and the valve seat is also surfacing with special treatment. The sealing surface is combined into various types such as anti-corrosion, wear-resistant, high-strength, etc. 3. Tightly sealed, transporting harmful gases can achieve zero leakage 4. The valve core of the sealing pair has a compensation amount. When the valve is worn, turn it a little when it is closed, so that it can be reliably sealed and prolong the service life. In addition, the user can screw off the compression nut, and the valve seat can still be used after adjustment or replacement, which avoids the disadvantages of the whole machine being scrapped after the valve seal fails.