Seal (mechanical)
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Compression seal example

A mechanical seal is a device which helps join systems or mechanisms together by preventing leakage (e.g., in a plumbing system), containing pressure, or excluding contamination.

Seal types;

• Induction sealing or cap sealing
• Adhesive, sealant
• Bodok seal, a specialized gas sealing washer for medical applications.
• Bridgman seal, a piston sealing mechanism that creates a high pressure reservoir from a lower pressure source.
• Bung
• Coating
• Compression seal
• Diaphragm seal
• Ferrofluidic seal
• Flange Gasket
• Gasket
• Glass-ceramic-to-metal seals
• Hose coupling, various types of hose couplings
• Hermetic seal
• Hydrostatic seal
• Hydrodynamic seal
• Labyrinth seal A seal which creates a tortuous path for the liquid to flow through
• Lid (container)
• Rotating face mechanical seal
• Face seal
• O-ring
• O-ring boss seal
• Piston ring
• Plug
• Radial shaft seal
• Trap (plumbing) (siphon trap)
• Stuffing box, Gland (engineering) (mechanical packing)
• Wiper seal
• Dry gas seal
• Exitex seal

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