A valve plug assembly for use in a control valve having a valve stem, a flow passage, and a valve seat disposed in the flow passage, the valve plug assembly comprising: a plug base defining a longitudinal axis and having a first end and a second end; the first end of the plug base being arranged for attachment to a valve stem of the control valve; the second end of the plug base including a bore extending along the longitudinal axis, the bore including a first portion extending into the plug base a first distance and a second portion extending into the plug base a second distance less than the first distance, an inner end of the second portion of the bore having a conical terminus forming a first seat; the first portion of the bore having a first diameter and the second portion of the bore having a second diameter greater than the first diameter; the second portion of the bore extending from the second end of the plug base to the conical terminus; a spacer having a through bore, a first end, and a second end, the spacer being sized for insertion in the second portion of the bore of the plug base, the first end of the spacer having a conical shape arranged to engage the first seat, the second end of the spacer having a conical terminus forming a second seat; a plug tip having a through bore, a first end having a conical shape arranged to engage the second seat of the spacer, and a second end shaped to engage the valve seat of the valve; and a cap screw sized for insertion through the plug tip and the through bore of the spacer and arranged for threaded engagement with the first portion of the bore of the plug base; wherein the cap screw mechanically secures the plug tip to the plug base, characterized in that the conical terminus of the second portion of the bore contacts the first portion of the bore. a plug base defining a longitudinal axis and having a first end and a second end; the first end of the plug base being arranged for attachment to a valve stem of the control valve; the second end of the plug base including a bore extending along the longitudinal axis, the bore including a first portion extending into the plug base a first distance and a second portion extending into the plug base a second distance less than the first distance, an inner end of the second portion of the bore having a conical terminus forming a first seat; the first portion of the bore having a first diameter and the second portion of the bore having a second diameter greater than the first diameter; the second portion of the bore extending from the second end of the plug base to the conical terminus; a spacer having a through bore, a first end, and a second end, the spacer being sized for insertion in the second portion of the bore of the plug base, the first end of the spacer having a conical shape arranged to engage the first seat, the second end of the spacer having a conical terminus forming a second seat; a plug tip having a through bore, a first end having a conical shape arranged to engage the second seat of the spacer, and a second end shaped to engage the valve seat of the valve; and a cap screw sized for insertion through the plug tip and the through bore of the spacer and arranged for threaded engagement with the first portion of the bore of the plug base; wherein the cap screw mechanically secures the plug tip to the plug base, characterized in that the conical terminus of the second portion of the bore contacts the first portion of the bore.