Seals (mechanical)

thumb|Some seals and gaskets A gasket is a mechanical seal which fills the space between two or more mating surfaces, generally to prevent leakage from or into the joined objects while under compression. It is a deformable material that is used to create a static seal and maintain that seal under various operating conditions in a mechanical assembly.

AB SKF (, 'Swedish Ball Bearing Factory') is a Swedish bearing and seal manufacturing company founded in Gothenburg, Sweden, in 1907. The company manufactures and supplies bearings, seals, lubrication and lubrication systems, maintenance products, mechatronics products, power transmission products, condition monitoring systems and related services globally.

thumb|A decorative lid A lid or cover is part of a container, and serves as the closure or seal, usually one that completely closes the object. Lids can be placed on small containers such as tubs as well as larger lids for open-head pails and drums. ==Etymology==

split ring that fits into a groove on the outer diameter of a piston in a reciprocating engine

device that completely prevents the flow of air or other fluids

thumb|right|cork (material)|Cork and muselet closure atop a bottle of [[Unibroue beer, unopened]] thumb|right|An opened muselet with cap thumb|right|A collection of champagne muselet caps A muselet () is a wire cage that fits over the cork of a bottle of champagne, sparkling wine or beer to prevent the cork from emerging under the pressure of the carbonated contents. It derives its name from the French museler, to muzzle. The muselet often has a metal cap incorporated in the design which may show the drink maker's emblem. They are normally covered by a metal foil envelope. Muselets are also k

devices and techniques used to close or seal a bottle, jug, jar, tube, can, etc.

gasket that sits between the engine block and cylinder head(s) in an internal combustion engine

assembly that houses a gland seal

300px|thumb|Self-leveling silicone [[firestop system used around pipe through-penetration in a two-hour fire-resistance rated concrete floor assembly.]]

thumb|The top of a flip-top bottle thumb|upright|Breaking the seal on a Flip-top A flip-top, swing-top, lightning toggle, or Quillfeldt stopper (after the inventor, Charles de Quillfeldt) is a type of bail closure frequently used for bottles containing carbonated beverages, such as beer or mineral water. The mouth of the bottle is sealed by a stopper, usually made of porcelain or plastic, fitted with a rubber gasket and held in place by a permanently attached wire bail. The bottle can be opened and resealed repeatedly without the use of a bottle opener, with the wires acting in the same way as

device used to attach and seal a hose onto a fitting

conical closure that fits into a container's opening to seal it

airtight seal

type of mechanical seal

type of seal utilised in rotating equipment

connector on the end of a hose to connect with another hose, a tap, or an appliance

airtight seal which joins glass and metal surfaces

mechanical seal which uses magnetic liquid