Two butterfly plates seal butterfly valve

• Main Authors: HU JIANHUA, ZHU MANRU, YE HAIRUI, XU SENJIANG, XU XIANCHAO, XU DANHUA, ZHU JIANWU, SU JIAJIA, YE YUNFEI, DAI XIESHENG, LYU JIADA, ZHU SHENGRUO
• Format: Patent
• Language: English
• Published: 09.12.2015
• 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 relates to a butterfly valve, in particular to two butterfly plates seal butterfly valve. The utility model provides a following technical scheme: a two butterfly plates seal butterfly valve, which comprises a valve body, a valve cove, be equipped with the medium admission passage on the valve body, medium outflow passageway and connection chamber, it is equipped with rotatable butterfly plate to connect the intracavity, be equipped with driving piece and valve rod on the valve gap, be equipped with the disk seat that the outer peripheral face is sealed with the butterfly plate on the valve body, the valve rod is including upper valve rod and lower valve rod with the driving piece linkage, the butterfly plate includes two, two butterfly plates set up towards medium admission passage and medium outflow passageway respectively, be equipped with the grafting cover that cup joints with upper valve rod and lower valve rod on two butterfly plates respectively, the lower valve rod is connected with the valve body through the sealed piece of dismantling, the sealed dismantlement is equipped with removable installation sleeve between piece and the lower valve rod, be equipped with the sealed piece of detachable stereoplasm between two butterfly plates and the disk seat. Adopt above -mentioned technical scheme, provide a convenient assembling, simple structure, two butterfly plates seal butterfly valve that the leakproofness is good.