Patent ID: 8082947

Claim:
A separable ball valve assembly, comprising: a separable pipe member having a flow path through which fluid flows; a ball member having at least two balls disposed in the pipe member, opening and closing the flow path, and adjacent to each other; and an opening/closing member, configured to control the ball member to open/close the flow path, including a gear train configured to control the opening/closing of the at least two balls, the gear train including: a first gear connected to one of the balls at its rotation center, a second gear connected to the other ball at its rotation center, and a central gear disposed between the first and second gears, wherein the balls have through-holes, respectively, wherein a toothed part is formed at a portion of a circumference of the central gear, and the toothed part of the central gear is sequentially meshed with a toothed part of the first gear and a toothed part of the second gear, wherein the diameter of the first and the second gears are equal to each other and provided with the toothed part formed on at least ¼ of the circumference of the first and the second gears, and the toothed part of the central gear is formed at a portion of the circumference of the central gear in order to sequentially rotate the first and second gears by 90°, and wherein the second ball comprises a recess formed at a side surface perpendicular to the second through-hole and the rotation center of the second gear, and the recess is in contact with the first ball.