Manual Fully Welded Ball Valve

1.Structure design, whole set structure: adopt the fully welding structure, no flange or screw connection, reduced the leakage points, strengthen the whole set strength and sealing performance of the valve, applicable to the long transporting pipeline and the fields with ultra high sealing requirements. Sphere design:the sphere is fix sphere structure, the sphere not generate displacement during open and close, only around the self axial to revolve, reduce the rub between the sphere and valve base, extend the working life of the sealing pair. Sphere passageway same to pipeline internal diameter, represent full through diameter design, medium flowing smoothly, ultra flow resistance. Valve rod design: the valve rod and sphere adopt whole set forge or high strength connect method, make ensure the valve rod able to reliably transmit torque during operating, drive the sphere rotating. Set multiply sealing structure on the valve rod, example fill material sealing and O-sealing ring, validly…