A packing case configured to be installed in a turbine having a rotor and rotor axis, the packing case having at least one brush ring seal device therein, the at least one brush ring seal device comprising: a brush seal carrier having a substantially ring-shaped body and being manufactured as two half ring segments, said ring shaped body having a front face , a rear face , an inner circumferential groove , and an outer circumferential groove said front and rear faces being configured to be perpendicular to the rotor axis, and said grooves being axially between the front and rear faces; and; a brush seal mounted within the inner circumferential groove of the brush seal carrier , the brush seal being manufactured as two half ring segments; wherein the rear face of the brush seal carrier is coated with an anti-friction coating, comprised of tungsten disulfide or molybdenum disulfide, thereby allowing movement of the brush ring seal device within the packing case ; characterized in that the at least one brush ring seal device further comprises a ring-shaped spring mounted within the outer circumferential groove of the brush seal carrier , the ring-shaped spring retaining the two half ring segments of the brush seal carrier together, and wherein the two half ring segments of the brush seal carrier form a pair of axial slots at a joint thereof when coupled together, with one slot at each coupling side of the two halves, there being a support tab positioned within each of the axial slots at the joint of the two half ring segments for supporting the brush seal carrier within the packing case , during assembly until pressure is applied, each of said tabs having a hole therein for receiving the ring-shaped spring . a brush seal carrier having a substantially ring-shaped body and being manufactured as two half ring segments, said ring shaped body having a front face , a rear face , an inner circumferential groove , and an outer circumferential groove said front and rear faces being configured to be perpendicular to the rotor axis, and said grooves being axially between the front and rear faces; and; a brush seal mounted within the inner circumferential groove of the brush seal carrier , the brush seal being manufactured as two half ring segments; wherein the rear face of the brush seal carrier is coated with an anti-friction coating, comprised of tungsten disulfide or molybdenum disulfide, thereby allowing movement of the brush ring seal device within the packing case ; characterized in that the at least one brush ring seal device further comprises a ring-shaped spring mounted within the outer circumferential groove of the brush seal carrier , the ring-shaped spring retaining the two half ring segments of the brush seal carrier together, and wherein the two half ring segments of the brush seal carrier form a pair of axial slots at a joint thereof when coupled together, with one slot at each coupling side of the two halves, there being a support tab positioned within each of the axial slots at the joint of the two half ring segments for supporting the brush seal carrier within the packing case , during assembly until pressure is applied, each of said tabs having a hole therein for receiving the ring-shaped spring . <EOS>