A valve apparatus for controlling the flow and pressure of fluids from a source of pressurized fluid with: a valve body, a valve chamber, a seat assembly in the valve chamber; a control member in the valve chamber axially movable with respect to the seat assembly, a lower stem connected to an output of an actuator of the valve, a valve bonnet attached to the valve body; the valve bonnet having a valve bonnet through bore with the lower stem slidingly reciprocating, moving the control member between the closed and open position, an annular sealing assembly, an outer seat carrier engaged within the valve body; the outer seat carrier comprising two elongated longitudinally disposed radial slots each oriented at right angles to the inlet port to impact a diversion wall of the outer seat carrier, splitting the inlet fluid into two flows simultaneously, reducing erosion on the radial slots.
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