Straight-through type plane sealing stop valve

• Main Authors: YANG HAN, CHEN FAN'E, PENG YANGANG, LUO YINYIN, JIN ANTAO
• Format: Patent
• Language: Chinese; English
• Published: 22.11.2022
• 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

A main sealing face is arranged in a valve body, a main valve clack comprises a main valve clack body, a main valve clack sealing body and a sealing ring, a step shaft is arranged on the lower portion of the main valve clack body, the main valve clack sealing body is arranged on the step shaft on the lower portion of the main valve clack body in a sleeved mode, and a sealing ring groove is formed in the inner cylindrical face of the main valve clack sealing body. The sealing ring is arranged in the sealing ring groove, the main valve clack sealing body and the main valve clack body are in up-and-down sliding sealing fit, the lower end of the step shaft of the main valve clack body is provided with a blocking shoulder for limiting up-and-down sliding of the main valve clack sealing body, and the lower end face of the main valve clack sealing body is provided with a main valve clack sealing face used for forming a sealing pair with the main sealing face of the valve body. The utility model solves the problems t