 The
seal is an agent that prevents leakage of oil from the hydraulic
elements and protects the system from dust/dirt. A hydraulic seal
is usually used to arrest both internal and external leakage of
oil/gas/steam. It maintains pressure, prevent loss of fluid from
the system and keeps out contamination in the system to enhance
its service life and functional utility. In any kind of pressure
actuated system, seal is necessary for rotary or reciprocating,
static or dynamic system, steam, hydraulic or pneumatic medium.
Types of Seals
Seals may be categorized as per methods of sealing, areas of application,
seal material, geometrical shapes of the seal used in the system
etc.
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