BUTTERFLY VALVE

摘要

PURPOSE: A butterfly valve is provided to improve durability by reducing focused pressure applied to a control lever and a rotary shaft. CONSTITUTION: A passage(17) pierces through a first disk(12) vertically and is connected to a rotary shaft(11). A stem(14) pierces through the passage and is inserted into the rotary shaft. A second disk(15) is opened/closed by the rotation of the stem. A second control lever(22) is installed at the upper part of a valve body(10) and is extended from the stem.