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Injectable packings

Injectable Black, White & Yellow

Three grades cover the majority of fluid media Injectable Black pH range 4-10 Injectable White pH range 0-14 Injectable Yellow pH range 2-13 Service capabilities Injectable Black Centrifugal pumps & rotaryequipment – 10°CMaximum shaft speed6m/s System pressure rangeVacuum to8bar Maximum temperature+150°C Minimum temperature Injectable White Centrifugal pumps & rotaryequipment – 100°CMaximum shaft speed10m/s System pressure range Vacuum to16bar Maximum temperature+250°C Minimum temperature Injectable Black is based on graphitefibre and high temperature non-melting grease. Injectable Yellow Injectable White is based on a blend ofmixed PTFE fibres with PTFE solids and a high temperature grease. Centrifugal pumps & rotaryequipment Prime features – 50°CMaximum shaft speed8.5m/s System pressure rangeVacuum to15bar Injectable Yellow is based on a blend ofKevlar Maximum temperature+250°C Minimum temperature How supplied End rings Ex-stock: 2kg tubs, complete with fitting instructions. Injection guns also supplied. Descriptions Typical applications Please note that end rings of conventional packing should be selected in the normal way to meet temperature, pressure and surface speed parameters of the application. Each grade of our injectable packings comprises a homogeneous blend of fibres/fillers, lubricant particles and lubricating grease. These products are pressure-injected by hand-operated gun through a valve directly into the gland housing, where two end rings of conventional packing are suitably sited to retain the sealing compound. The gland follower is then adjusted to compress the materials and form a seal. Centrifugal pumps and rotary mixers that handle cooling water, aqueous solutions, oils or solvents, particularly in processing sectors such as pulp and paper, metallurgical or mineral. Injectables are sometimes used because they readily conform to worn shafts or irregular housings.
l Can be controlled to give lowleakage.
l No strip-down needed for repacking.
l Effective in less than perfect mechanical conditions.
l No flush required.
l Extended service life can be achieved. Chemical properties Between them, these three products provide a wide range of compatibility with media including water, oils, acids, alkalis and solvents.
® fibres with PTFE solids and a purelubricant. To order or get further details, call your local contact shown on rear cover or listed at www.jameswalker.biz 29 29