A reformable packing ring comprising compressed particles of flexible graphite. Such packing ring can be used to pack the stuffing box assembly of any pump, valve, or like structure. Because such packing ring undergoes considerable flow when subjected to pressure, it is capable of forming a better interference fit within the stuffing box than presently employed packing rings. As a result of this ability to flow and reform its dimensions under pressure, such packing ring need not be sized as precisely to the dimensions of a particular stuffing box as presently employed rings.
