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Mechanical gland packings provide a traditional, simple and cost effective way to seal pump shafts and valve stems. Development in fibres, lubricants and braiding technology have been combined to improve the performance of packings and enable suitable types to be utilized as variable alternatives to mechanical shaft seals in many applications.
By selecting the appropriate gland packing and with correct installation, gland packings provide a controlled sealing solution, minimising equipment wear, down-time and running costs.
Packings are ( depends on specific type ) impregnated by Graphite or PTFE
Silicon and so on .
They are knitted, the most common way is diagonal, but can be extruded even in a round profile.
- Graphite Graphite tape
- PTFE, gPTFE , PTFE-extrud
- PTFE -Aramid
- Aramid, spunAramid
- Acrylate, Ramie, Polyimid