A valve plug assembly for use in a control valve assembly having a valve stem, a fluid flow passageway, and a valve seat disposed in the fluid flow passageway, the valve plug assembly comprising: a valve plug base extending along a plug base axis, the valve plug base including a base body portion arranged for attachment to the valve stem and a base mating portion coupled to the base body portion; a valve plug tip extending along a plug axis coaxially aligned with the plug base axis, the valve plug tip having a tip body portion and a tip mating portion coupled to the tip body portion, the tip body portion having a sealing surface arranged to sealingly engage the valve seat; and a clamp that removably couples the valve plug tip to the valve plug base, the clamp extending along a clamp axis coaxially aligned with the plug base axis and the plug axis, the clamp comprising a plurality of mating surfaces that define a clamp bore, wherein at least a portion of the base mating portion and at least a portion of the tip mating portion are disposed in the clamp bore such that the base mating portion and the tip mating portion each engage at least one of the plurality of mating surfaces of the clamp, and wherein the plurality of mating surfaces includes a first mating surface, a second, frustoconical mating surface, a third mating surface, a fourth, frustoconical mating surface, and a fifth mating surface, wherein the base mating portion engages the first mating surface, the second, frustoconical mating surface, and the third mating surface, and the tip mating portion engages the third mating surface, the fourth, frustoconical mating surface, and the fifth mating surface, characterized in that the base mating portion has an outer diameter that is less than an outer diameter of the base body portion, and in that the tip mating portion has an outer diameter that is less than an outer diameter of the tip body portion. a valve plug base extending along a plug base axis, the valve plug base including a base body portion arranged for attachment to the valve stem and a base mating portion coupled to the base body portion; a valve plug tip extending along a plug axis coaxially aligned with the plug base axis, the valve plug tip having a tip body portion and a tip mating portion coupled to the tip body portion, the tip body portion having a sealing surface arranged to sealingly engage the valve seat; and a clamp that removably couples the valve plug tip to the valve plug base, the clamp extending along a clamp axis coaxially aligned with the plug base axis and the plug axis, the clamp comprising a plurality of mating surfaces that define a clamp bore, wherein at least a portion of the base mating portion and at least a portion of the tip mating portion are disposed in the clamp bore such that the base mating portion and the tip mating portion each engage at least one of the plurality of mating surfaces of the clamp, and wherein the plurality of mating surfaces includes a first mating surface, a second, frustoconical mating surface, a third mating surface, a fourth, frustoconical mating surface, and a fifth mating surface, wherein the base mating portion engages the first mating surface, the second, frustoconical mating surface, and the third mating surface, and the tip mating portion engages the third mating surface, the fourth, frustoconical mating surface, and the fifth mating surface, characterized in that the base mating portion has an outer diameter that is less than an outer diameter of the base body portion, and in that the tip mating portion has an outer diameter that is less than an outer diameter of the tip body portion.