Abrasion Resistance-The ability of a material to withstand mechanical wear.
Back-up Ring-A rigid ring used with an O-ring to prevent extrusion in high-pressure applications.
Blowout-The sudden loss of a gasket or seal due to pressure surges or improper installation.
Compression Set-The permanent deformation of a sealing material after prolonged compression.
Cross-section-The thickness or diameter of a sealing element like an O-ring, measured across its width.
Dynamic Seal-A seal between two parts that move relative to each other (e.g., rotating shafts or reciprocating
pistons)
Elastomer-A polymer with elastic properties commonly used in seals, such as Nitrile, EPDM, or FKM.
Extrusion-Deformation of a seal under pressure, potentially causing failure.
Face Seal-A sealing method where two flat surfaces are pressed together with a gasket or seal in between.
Friction-Resistance encountered by the seal during motion, impacting wear and performance.
Gland-The component or housing in which a seal is installed.
Gasket-A static seal used to prevent leakage between two stationary parts.
ID (Inner Diameter)-The internal diameter of a seal or gasket.
Inert Material-A chemically stable material that resists reacting with other substances.
Lip Seal-A seal with a flexible lip that maintains contact with a rotating or reciprocating surface.
Load-The force applied to a seal to maintain compression and prevent leaks.
Mechanical Seal-A device used to contain fluid within a vessel where a rotating shaft passes through a stationary
housing.
Media-The fluid (liquid or gas) that the seal is designed to contain.
Nitrile (Buna-N)-A commonly used elastomer for seals due to its good oil and fuel resistance.
O-Ring-A circular elastomeric ring used to block the passage of liquids or gases.
Outgassing-The release of gases from a material, which can impact seal performance in vacuum environments.
Permeation-The diffusion of a fluid through a seal material over time.
PTFE (Polytetrafluoroethylene)-A chemically resistant, low-friction sealing material (e.g., Teflon).
Radial Seal-A seal that prevents leakage along the radius of a shaft.
Resilience-The ability of a seal material to return to its original shape after deformation.
Rotary Seal-A seal used in applications involving rotating motion, like pump shafts.
Static Seal-A seal where there is no relative motion between the sealing surfaces.
Torque-A force that causes rotation, which seals must often withstand.
UV Resistance-The ability of a seal material to resist degradation from ultraviolet light.
FKM (Fluoroelastomer V75)-Known for excellent chemical and temperature resistance.
Wear Ring-A component used to guide the motion of moving parts and protect the seal.
Wiper Seal-A seal designed to keep contaminants out of a hydraulic or pneumatic cylinder.
Yield Strength-The maximum stress a material can withstand without permanent deformation.