A valve (10; 100) for regulating the flow of a fluid, the valve (10; 100) comprising: a housing (12; 112) defining a fluid inlet (14; 114) and a fluid outlet (16; 116); a valve cage (20; 120) disposed within the housing (12; 112) and defining at least one projection wall (32; 132); an axial trim (36; 136) at least partially disposed within the valve cage (20; 120) and reciprocally moveable between an open position wherein fluid is able to flow therealong from the fluid inlet (14; 114) to the fluid outlet (16; 116), and a closed position wherein the flow of the fluid from the fluid inlet (14; 114) to the fluid outlet (16; 116) is blocked thereby, the axial trim (36; 136) comprising: an elongate main body (38; 138) defining an axis; and at least one opposed pair of notches (42; 142, 142a) formed in the main body (38; 138), each of the notches (42; 142, 142a) of the pair defining a first wall which extends at an angle in the range of from about 20° to about 40° relative to the axis, a second wall which extends to the first wall in generally parallel relation to the axis, and a third wall which extends to the second wall in generally perpendicular relation to the axis; the notches (42; 142, 142a) and the projection wall (32; 132) collectively defining a tortuous flow passage through the valve cage (20; 120) which fluidly connects the fluid inlet (14; 114) to the fluid outlet (16; 116) when the axial trim (36; 136) is in the open position. a housing (12; 112) defining a fluid inlet (14; 114) and a fluid outlet (16; 116); a valve cage (20; 120) disposed within the housing (12; 112) and defining at least one projection wall (32; 132); an axial trim (36; 136) at least partially disposed within the valve cage (20; 120) and reciprocally moveable between an open position wherein fluid is able to flow therealong from the fluid inlet (14; 114) to the fluid outlet (16; 116), and a closed position wherein the flow of the fluid from the fluid inlet (14; 114) to the fluid outlet (16; 116) is blocked thereby, the axial trim (36; 136) comprising: an elongate main body (38; 138) defining an axis; and at least one opposed pair of notches (42; 142, 142a) formed in the main body (38; 138), each of the notches (42; 142, 142a) of the pair defining a first wall which extends at an angle in the range of from about 20° to about 40° relative to the axis, a second wall which extends to the first wall in generally parallel relation to the axis, and a third wall which extends to the second wall in generally perpendicular relation to the axis; the notches (42; 142, 142a) and the projection wall (32; 132) collectively defining a tortuous flow passage through the valve cage (20; 120) which fluidly connects the fluid inlet (14; 114) to the fluid outlet (16; 116) when the axial trim (36; 136) is in the open position. an elongate main body (38; 138) defining an axis; and at least one opposed pair of notches (42; 142, 142a) formed in the main body (38; 138), each of the notches (42; 142, 142a) of the pair defining a first wall which extends at an angle in the range of from about 20° to about 40° relative to the axis, a second wall which extends to the first wall in generally parallel relation to the axis, and a third wall which extends to the second wall in generally perpendicular relation to the axis; the notches (42; 142, 142a) and the projection wall (32; 132) collectively defining a tortuous flow passage through the valve cage (20; 120) which fluidly connects the fluid inlet (14; 114) to the fluid outlet (16; 116) when the axial trim (36; 136) is in the open position.