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  2. End-face mechanical seal - Wikipedia

    en.wikipedia.org/wiki/End-face_mechanical_seal

    Many seal rings contain the seal face diameters, although this is not a requirement of the primary ring. The seal ring always contains the balance diameter. The shape of the seal ring may vary considerably according to the incorporation of various design features. In fact, the shape of the seal ring is often the most distinct identifying ...

  3. Back-up ring - Wikipedia

    en.wikipedia.org/wiki/Back-up_ring

    A back-up ring is a rigid ring that holds an elastomeric seal or plastic (such as Polyethylene) connection to its designed shape and in its correct place. Back up rings are commonly used with O-rings, lip seals, and as reciprocating shaft seals. They are also used for piping connections joining two different materials - typically one flexible ...

  4. O-ring - Wikipedia

    en.wikipedia.org/wiki/O-ring

    An O-ring, also known as a packing or a toric joint, is a mechanical gasket in the shape of a torus; it is a loop of elastomer with a round cross-section, designed to be seated in a groove and compressed during assembly between two or more parts, forming a seal at the interface.

  5. Category:Seal rings - Wikipedia

    en.wikipedia.org/wiki/Category:Seal_rings

    Category for different types of ring-shaped mechanical seal, and the technology involved. Pages in category "Seal rings" The following 7 pages are in this category, out of 7 total.

  6. Ground glass joint - Wikipedia

    en.wikipedia.org/wiki/Ground_glass_joint

    The rim of the joint is flared, sometimes into a wide flange, to give a larger surface for the joint to seal over. Aside from joints using a gasket or O-ring, this is the only type of ground-glass joint used for very large diameters, since at those scales conical joints become impractical to manufacture and are prone to binding. Flat joints are ...

  7. Gas cylinder - Wikipedia

    en.wikipedia.org/wiki/Gas_cylinder

    Parallel thread can be tightened sufficiently to form a good seal with the O-ring without lubrication, which is an advantage when the lubricant may react with the O-ring or the contents. Repeated secure installations are possible with different combinations of valve and cylinder provided they have compatible thread and correct O-ring seals.

  8. Bonded seal - Wikipedia

    en.wikipedia.org/wiki/Bonded_seal

    A bonded seal commonly seals between bolt head and body. In mechanical engineering, a bonded seal is a type of washer used to provide a seal around a screw or bolt. Originally made by Dowty Group, they are also known as Dowty seals or Dowty washers. [1] Now widely manufactured, they are available in a range of standard sizes and materials [2 ...

  9. O-ring boss seal - Wikipedia

    en.wikipedia.org/wiki/O-ring_boss_seal

    An o-ring boss seal is a technique for joining two fluid-carrying pipes, hoses, or tubing. In an o-ring boss (abbreviated ORB) system, a male-threaded part is inserted into a female-threaded part, providing a mechanical seal. This system differs from others in that a nut is tightened over an o-ring in a chamfered area, creating a fluid-tight ...

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