VALVE DISK AND BUTTERFLY VALVE USING IT

• Main Authors: KANG, BYEONG MO, KIM, GEON UK, BAE, SEUNG HOON, HAN, SEUNG HO, LEE, MYEONG GON
• Format: Patent
• Language: English; Korean
• Published: 03.06.2014
• 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

Provided in the present invention are a valve disk for a valve installed on a duct for blocking and controlling the flow of fluid, adjusting the pressure of fluid, and preventing a countercurrent, and a butterfly valve using the same. According to the valve disk (10) and butterfly valve (10′) using the same of the present invention, when an action force is generated by a fluid controlled by the valve disk (10) having a dual structure of an internal disk (12) and an external disk (14), the action of the internal disk (12) can minimize the deformation applied to a rotation shaft (18), thus effectively offsetting the deformation applied to the rotation shaft of the valve disk installed on a duct for blocking and controlling the flow of fluid, adjusting the pressure of fluid, and preventing a countercurrent.