Supagraf® RibbonPak SC, a gland packing introduced by James Walker, is suitable for power stations and processing plants. Totally carbon-based, this new product provides high integrity sealing for steam valves at high temperatures and pressures. It also works as a long-life gland packing for high speed rotary pumps that handle condensate, process water, chemical solutions or slurries. Supagraf RibbonPak SC is chemically inert in the range pH 0-14, excluding strong oxidising agents. It works at up to 650C in steam or 450C in oxidising conditions. Maximum system pressure in valves is 250bar. In rotary pumps it works at up to 20m/s shaft speed or 25bar system pressure. It is supplied in all popular sections from 3mm to 25mm, boxed in 8m lengths, or as moulded rings, split preformed rings and sets.
