Novel hard sealing butterfly valve

• Main Authors: HONG KUNSHENG, HONG CHUNLONG
• Format: Patent
• Language: Chinese; English
• Published: 27.06.2017
• 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 invention belongs to the field of valves, and particularly relates to a novel hard sealing butterfly valve. The novel hard sealing butterfly valve is characterized in that a fixing plate is fixed in a valve cavity and located on the fluid outlet side of a valve plate; a check plate is located in the valve cavity and located on the fluid outlet side of the fixing plate; a middle rod first limiting plate is located on the fluid inlet side of the fixing plate and connected with one end of a middle rod; a middle rod second limiting plate is located on the fluid outlet side of the check plate and connected with the other end of the middle rod; an upper inserting column is located above the middle rod, one end of the upper inserting column is fixed to the fixing plate, and the other end of the upper inserting column penetrates the check plate and is connected with an upper inserting column limiting plate; and one end of a lower inserting column is fixed to the fixing plate, the other end of the lower inserting