A pressure regulating valve for use in a fluid flow system, the pressure regulating valve comprising: a housing including an inlet and an outlet , wherein the inlet is fluidly coupled to a first fluid channel , and wherein the outlet is fluidly coupled to a second fluid channel ; a sleeve positioned within the housing , the sleeve comprising a first conduit and a second conduit ; cap coupled to a first end of the housing , wherein the cap extends partially within and partially outside of the housing; a plurality of shims positioned within the cap and axially aligned with a central axis of the cap; a spring positioned at least partially within the cap and axially aligned with the central axis of the cap, wherein the spring abuts one of the plurality of shims at a first distal end of the spring; and a spring seat positioned at least partially within the sleeve, wherein the spring seat is configured to abut a second distal end of the spring on a first side of the spring seat and abut a pin on a second side of the spring seat, wherein the pin extends between the spring seat and a spool slidingly positioned within the sleeve, wherein the spool comprises: an internal cavity positioned within an outer wall of the spool and formed by the outer wall of the spool; a first regulating window fluidly coupling the internal cavity of the spool and the first conduit of the sleeve; a second regulating window fluidly coupling the internal cavity of the spool to a drain conduit; and a spool outlet fluidly coupling the internal cavity of the spool and the second conduit of the sleeve; wherein the plurality of shims are configured to be added and removed as needed to fine tune a spring load of spring to set a regulating pressure of the valve . a housing including an inlet and an outlet , wherein the inlet is fluidly coupled to a first fluid channel , and wherein the outlet is fluidly coupled to a second fluid channel ; a sleeve positioned within the housing , the sleeve comprising a first conduit and a second conduit ; cap coupled to a first end of the housing , wherein the cap extends partially within and partially outside of the housing; a plurality of shims positioned within the cap and axially aligned with a central axis of the cap; a spring positioned at least partially within the cap and axially aligned with the central axis of the cap, wherein the spring abuts one of the plurality of shims at a first distal end of the spring; and a spring seat positioned at least partially within the sleeve, wherein the spring seat is configured to abut a second distal end of the spring on a first side of the spring seat and abut a pin on a second side of the spring seat, wherein the pin extends between the spring seat and a spool slidingly positioned within the sleeve, wherein the spool comprises: an internal cavity positioned within an outer wall of the spool and formed by the outer wall of the spool; a first regulating window fluidly coupling the internal cavity of the spool and the first conduit of the sleeve; a second regulating window fluidly coupling the internal cavity of the spool to a drain conduit; and a spool outlet fluidly coupling the internal cavity of the spool and the second conduit of the sleeve; wherein the plurality of shims are configured to be added and removed as needed to fine tune a spring load of spring to set a regulating pressure of the valve . an internal cavity positioned within an outer wall of the spool and formed by the outer wall of the spool; a first regulating window fluidly coupling the internal cavity of the spool and the first conduit of the sleeve; a second regulating window fluidly coupling the internal cavity of the spool to a drain conduit; and a spool outlet fluidly coupling the internal cavity of the spool and the second conduit of the sleeve; wherein the plurality of shims are configured to be added and removed as needed to fine tune a spring load of spring to set a regulating pressure of the valve . <EOS>