For Chemical Pumps - Valqua® No. 6262. Coil packing made of carbon fiber yarns, processed with PTFE dispersion and lubricating oil, then braided into a square cross-section and finished with PTFE, fine graphite and lubricating oil. Features: Allows permissible PV value and shaft speed limit. Reduced shaft wear due to packing. Suitable for almost all fluids except for strong oxidizing fluids.