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  • Definition and Applications of Compression Packing
    common of these sealing devices is compression packing, so called because of the manner in which it performs the sealing function. Made from relatively soft, pliant materials, compression or jam packings consist of a number of rings which are inserted into the annular space (stuffing box) between
  • New FFKMs Produce Seals That Withstand Chemicals, Fluids and Heat
    Seals, gaskets, o-rings and packings take abuse when they are used in enhanced oil recovery techniques like gas injection. New FFKM resins produce components that can withstand these extreme temperatures, pressures and chemicals. These components last far longer, preventing leaks that result
  • SMB Takes On Paclitaxel Purification
    were injected onto a single column with the proposed SMB packing and mobile phase composition. It was found that paclitaxel exhibited a counter intuitive behavior in which its retention actually increased with increasing injection mass. This is known as "Anti-Langmuir " behavior [7]. Cephalomannine
  • Beware Thermal Cycling in BioProcessing Part One
    is created inside, and if the stem seals in ball valves used for isolation have failed, contaminating microorganisms may be drawn into the system. Generally, ball valve stem seals consist of a ring of polytetrafluoroethylene (PTFE) having a square or rectangular cross-section and are contained

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