Anti-corrosion fluorine-lined ball valve and valve body manufacturing process thereof

• Main Authors: YE BOTONG, LU BING, LI YANFEI
• Format: Patent
• Language: Chinese; English
• Published: 15.02.2019
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; COMBINED OPERATIONS; DEVICES FOR VENTING OR AERATING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MACHINE TOOLS; MECHANICAL ENGINEERING; METAL-WORKING NOT OTHERWISE PROVIDED FOR; OTHER WORKING OF METAL; PERFORMING OPERATIONS; TAPS; THERMAL INSULATION IN GENERAL; TRANSPORTING; UNIVERSAL MACHINE TOOLS; VALVES; WEAPONS

The invention discloses an anti-corrosion fluorine-lined ball valve. The anti-corrosion fluorine-lined ball valve comprises a valve body, a valve rod, a ball body which is linked and matched with thevalve rod and a valve cavity used for medium circulation, wherein a valve seat which is matched and sealed with the ball body is arranged in the valve cavity; a fluorine-lined layer is arranged on each of the inner wall of the valve cavity and the outer wall of the valve rod; the valve rod and the ball body are in split type connection; padding is arranged between the valve rod and the valve body;a pressure cover is arranged on the padding; a limiting mechanism for limiting the valve rod to continuously rotate when the valve is completely opened or closed is arranged on the pressure cover; the limiting mechanism comprises cams, a plurality of contact heads, a spring and a sealing cover; grooves for placing the cams are formed in the pressure cover; the cams sleeve the valve rod, and are linked and matched with the