For General Use Valves - Valqua® No. VFT-22. Coil packing made of expanded graphite yarn clad with PTFE film, and braided into a square cross-section, that is, gland packing that makes use of the features of each material. Features: Excellent in sealing property and durability with expanded graphite as the major material. Low stem friction as the surface is clad with PTFE.