To achieve zero leakage between a moving member and a relatively stationery part, a wide range of seals and rings are employed. However the most common, least expensive and versatile in nature is the Gland Packing. Gland Packing provides a dynamic seal for a Rod, Shaft or Stem via housing or gland which is packed with resilient or semi resilient material, thus providing a localized contact area which offers a physical barrier to leakage.
Properties :
Good anti friction properties
Good chemical resistance to fluid contained
Should not get affected by the temperature of application
Should be reasonably compressible and have a good resilience
Should retain the lubricants
Should not affect the shaft
Should not contaminate the fluid being contained.
The fitting of Gland Packing depends on manual skils and we have to take preparatory precautions and depends on condition of plant selection of Grade and Size, Packing the gland and running in.
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