BALL VALVE UNIT

• Main Author: SHIM, YOUNG SAM
• Format: Patent
• Language: English; Korean
• Published: 18.05.2016
• 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 present invention relates to a ball valve unit. The ball valve unit includes: a valve body having a flow path in which a fluid can flow; and a stem selectively opening and closing the flow path of the valve body. The stem includes: a stem body having a metal main body unit including a through channel selectively connected to the flow path, and a connection unit connecting the main body unit to an outer power source to rotate the main body; a heat resistance reinforcing member enclosing the main body unit of the stem body to prevent a wear caused by direct contact between the valve body and the stem body and formed of a synthetic resin material; and a position fixing member connected to the valve body by a screw to fixate the position of the stem body by pressing the stem body toward the valve body. The ball valve unit can prevent an opening and closing member opening and closing the flow path of the valve from being worn and can improve high resistance at extremely low temperatures and at extremely high temperatures. 본 발명은 볼 밸브 유닛에 관한 것으로, 유체가 흐를 수 있는 유로가 형성되어 있는 밸브 몸체와, 밸브 몸체의 유로를 선택적으로 개폐시키는 스템;을 포함하되, 스템은, 유로와 선택적으로 소통되는 관통채널이 형성되어 있고 금속 재질로 형성되는 본체부와 본체부의 회전동작을 위하여 그 본체부와 외부 동력원을 연결시키는 연결부를 포함하는 스템본체; 밸브 몸체와 스템본체 간의 직접적인 접촉에 의한 마모를 방지할 수 있도록, 스템본체의 본체부를 감싸는 형태로 결합되고 합성수지 재질로 형성되는 내열성 강화부재; 및 스템본체를 밸브 몸체 측으로 가압하여 위치고정시킬 수 있도록, 밸브 몸체에 나사결합되는 위치고정부재;를 포함하여 이루어지는 것을 특징으로 한다.