Plaiting methods 

            2-diagonally                     3-diagonally                   4-diagonally                     braid-over-braid

Design

For all requirements HECKER® - stuffing box packings are plaited from yarns made of the following fibres:

Natural fibres:
          Ramie
          cotton

synthetic fibres:
            Polytetrafluorethylen (PTFE)
            Polyaramide und Polyimide
            Polybenzimidacole (PBI)
            Polyacrylate
            Graphite
            carbon

inorganic fibres:
            Glass
            ceramics

By means of impregnation with special compounds the packing is adapted to every respective application purpose,
e.g. lubricants for pump packings, binding and filling agents and dry lubricants for valve packings or PTFE for
piston pump packings. 

For the sealing of stuffing boxes which are exposed to higher temperatures and pressures where plaited packings
cannot be used, the application of packing rings and bushings of expanded graphite, the HECKER® Grafotherm® seals
are recommended. 

HECKER® Euraflon® (PTFE) universal flat seals with adhesive strip as well as the so-called AK-seals
(asbestos-free fabric caoutchouc), which are produced of gummed fabrics are available for the static sealing of covers.