Low-torque pressure self-sealing fixed ball valve

• Main Authors: SUN SHUAIJUN, CHANG BING, ZHANG DA, WANG HONG, SHEN JIAJUN, SHEN KEJIN
• Format: Patent
• Language: Chinese; English
• Published: 19.09.2023
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; DEVICES FOR VENTING OR AERATING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; TAPS; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

The utility model discloses a low-torque pressure self-sealing fixed ball valve which comprises a valve body, a ball body, a valve seat assembly, a valve rod and a valve cover, a mounting cavity is formed in the valve body, the ball body is rotationally mounted in the mounting cavity in the valve body, the valve rod is mounted on the ball body, the valve cover is arranged on the valve body, and the valve seat assembly is arranged on the valve cover. A mounting cavity is formed in the ball body, the valve cover is located at an opening of the mounting cavity, the valve seat assembly is arranged in the mounting cavity and located between the valve cover and the ball body, a part of the inner wall of the mounting cavity is a V-shaped inclined plane, the valve seat assembly is tightly attached to the V-shaped inclined plane, and the seat positioning ring is arranged in the mounting cavity. And the two sides of the seat positioning ring are respectively clung to the valve cover and the seat assembly. The ball valv