Patent ID: 8480897

Claim:
An apparatus for removing impurities included in a fluid, the apparatus comprising: a housing coupled to a fluid supply inlet, the housing having therein a fluid inlet, a fluid outlet, and an impurity exhaust pipe; an impurity filtering net body provided within the hollow part of the filtering net installation body and having a filter; a fluid inflow pipe being coupled to the fluid inlet of the housing; a fluid exhaust pipe being coupled to the fluid outlet of the housing; and a ball valve including a ball housing and a lever, the ball housing disposed at an intersection between the fluid inflow pipe and the impurity exhaust pipe of the housing; a ball provided within the ball housing, the ball having a first path having a first cross-section and a second path having a second cross-section that is smaller than the first cross-section, wherein the lever is used to rotate the ball so that the first path or the second path is connecting the fluid supply inlet and the fluid inflow pipe, wherein the first path of the ball is configured to pass fluid between the fluid supply inlet and the fluid inflow pipe at a first speed, and the second path of the ball is configured to pass fluid between the fluid supply inlet and the fluid inflow pipe at a second speed, and wherein the second speed is faster than the first speed so that the impurities trapped in the fluid exhaust pipe can be removed more effectively.