This article is about mechanical seals. For other uses, see Gasket (disambiguation).
Some seals and gaskets
1. o-ring
2. fiber washer
3. paper gasket
4. cylinder head gasket
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.[1]
Gaskets allow for "less-than-perfect" mating surfaces on machine parts where they can fill irregularities. Gaskets are commonly produced by cutting from sheet materials. Given the potential cost and safety implications of faulty or leaking gaskets, it is critical that the correct gasket material is selected to fit the needs of the application.[2]
Gaskets for specific applications, such as high pressure steam systems, may contain asbestos. However, due to health hazards associated with asbestos exposure, non-asbestos gasket materials are used when practical.[3]
It is usually desirable that the gasket be made from a material that is to some degree yielding such that it is able to deform and tightly fill the space it is designed for, including any slight irregularities. Some types of gaskets require a sealant be applied directly to the gasket surface to function properly.
Some (piping) gaskets are made entirely of metal and rely on a seating surface to accomplish the seal; the metal's own spring characteristics are utilized (up to but not passing σy, the material's yield strength). This is typical of some "ring joints" (RTJ) or some other metal gasket systems. These joints are known as R-con and E-con compressive type joints.[4]
Polytetrafluoroethylene (PTFE) gasket
Some gaskets are dispensed and cured in place. These materials are called formed-in-place gaskets.[5]
^"GFS Gaskets". Gallagher Seals. Retrieved 6 August 2021.
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...
In an internal combustion engine, a head gasket provides the seal between the engine block and cylinder head(s). Its purpose is to seal the combustion...
In mathematics, an Apollonian gasket or Apollonian net is a fractal generated by starting with a triple of circles, each tangent to the other two, and...
every existing internal combustion engine today. A gasket (rocker cover gasket, or valve cover gasket in the US and Canada) helps seal the joint between...
that the gasket needs replacing with a new one. Oiling the gasket with vegetable oil may alleviate the problem temporarily, but a new gasket is often...
cuts into the softer metal gasket, providing an extremely leak-tight, metal-to-metal seal. Deformation of the metal gasket fills small defects in the...
experienced failures of a profile gasket sealing the lower cam chain case to the underside of the cylinder head. This gasket seals the primary coolant passage...
The Gaskets was an American synth-pop/rock duo formed in Richmond, Virginia in 2001 by Teddy Blanks (vocals, keyboards) and Ross Harman (sequencer, guitar)...
Rangers. Louie is eventually killed by King Mondo's first-born son Prince Gasket and his wife Princess Archerina, who rule until King Mondo's reconstruction...
ends of pipes with a grooved indentation on the flange. a polymer sealing gasket placed between sections of pipe, squeezed between the flanges. This ring...
A fractal antenna is an antenna that uses a fractal, self-similar design to maximize the effective length, or increase the perimeter (on inside sections...
gaskets are used with raised-face flanges, and ring-joint gaskets are used with ring-type joint (RTJ) flanges. Stress develops between an RTJ gasket and...
between block and head. This is usually done by means of a head gasket, a flat gasket on the surface of the block. In early engines, the high pressures...
The slip joint includes a gasket that fits snugly on a pipe end, with a threaded nut behind the gasket, but with gasket position adjustable as needed...
seal itself acts to retain the gasket material, there is no need for the parts to be sealed to be shaped to retain the gasket. This results in simplified...
Sierpinski triangle (a.k.a. Sierpinski gasket), but that the edited novel is "more like a lopsided Sierpinsky Gasket". Some works by the Dutch artist M....
methanol and ethanol. The pressure-transmitting medium is enclosed by a gasket and the two diamond anvils. The sample can be viewed through the diamonds...
a groove in the face of at least one of flanges forming each join. Gasket, gasket/cover or pressurizable flanges (such as that on the right of figure 2)...
requiring a stronger engine block to avoid distortion of the metal, and better gasket sealing between the two bores. Related articles (example engines with siamesed...
reach temperatures well in excess of 160 °C (320 °F) which may damage the gasket in an ordinary pressure cooker, causing it to fail. Second-generation cookers...
Global Information
