In piping systems, square rubber gaskets are used to seal joints and connections, preventing leaks and ensuring the integrity of the system
. These gaskets are available in different thicknesses and sizes to accommodate various pipe diameters and pressure ratings.
Lubricants applied between moving and stationary elements of mechanical equipment help to prevent damage. But when the equipment are under high pressure, the lubricants tend to escape, hence the need for oil seals to prevent the clashing of dry parts. Practically all mechanical equipment, including car engines, assembly machines, and PTFE machined parts use these oil seals to prevent harmful interaction that can result in damaged parts.