Patent ID: 8313085

Claim:
An apparatus configured to control a rate of flow of fluid, comprising: a flow adjustment member having first and second fluid flow channels therethrough, the first and second fluid flow channels having substantially different cross-sectional sizes, the flow adjustment member also having first and second securing pin recesses; and a main body comprising: a fluid inlet; a fluid outlet; a fluid flow passage extending from the inlet to the outlet; a cavity adapted to receive the flow adjustment member, wherein the flow adjustment member is moveable within the cavity to a first position in which the first fluid flow channel fluidly communicates with the fluid flow passage of the main body, and wherein the flow adjustment member is moveable within the cavity to a second position in which the second fluid flow channel fluidly communicates with the fluid flow passage of the main body; and at least one securing pin passage adapted to receive a securing pin configured to engage the first securing pin recess or the second securing pin recess, such that engagement of the securing pin with either the first securing pin recess or the second securing pin recess causes the securing pin to resist movement of the flow adjustment member until a movement force acting on the flow adjustment member exceeds a threshold, wherein the flow adjustment member, when received within the cavity, is rotatable between the first and second positions, wherein the first securing pin recess and the second securing pin recess are positioned within an annular pin groove, and wherein the at least one securing pin engages the annular pin groove when the securing pin is received within the securing pin passage.