Fluorine-lined ball valve with sealing compensation

• Main Authors: ZHENG JIANGUANG, YANG BAOBAO
• Format: Patent
• Language: Chinese; English
• Published: 19.03.2024
• 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 fluorine lining ball valve comprises a valve body, a valve clack arranged in the valve body and a valve rod connected with the valve clack and a handle outside the valve body through a valve rod cavity, the upper end of the valve rod cavity is rotationally connected with the valve rod through an arranged bearing, and an opening in the upper end of the valve rod cavity is sealed through an end cover nut. An inner sealing ring made of a fluorine lining material is arranged at the lower end of the valve rod cavity; a sealing compensation mechanism is arranged on the portion, between the bearing and the inner sealing ring, of the valve rod, is arranged in the axis direction of the valve rod cavity and is used for generating downward pressure to press the inner sealing ring. Sealing compensation can be carried out through the sealing compensation mechanism, leakage of the fluorine-lined ball valve due to elastic failure of the sealing ring is avoided, and the service life is prolonged. 本实用新型公开了一种带密封补偿的衬氟球阀，包括阀