O Ring Boss Seal Design

All seals is a world leader in supply of high quality o rings seals engineered rubber and plastic products which serves the sealing needs of clients since 1958.

O ring boss seal design.

O ring face seal orfs sae j1453 this connection is designed for leak free use to 6000 psi. O ring sizes are detailed in sae j1926. In order to seal properly the o ring has to deform in the application by being compressed and stretched in any number of ways. The design charts below show the standard boss designs that are used for this purpose.

These charts list port dimensions per as5202 and j1926 and fitting ends per as4395. There are industry standards for boss fittings with a series of o rings corresponding to each boss size. A standard application for an o ring is sealing a tube fitting. Boss seals the as568 901 through 932 o ring sizes parker s 3 series are intended to be used for sealing straight thread tube fittings in a boss.

4 5 boss seals the as568 901 through 932 o ring sizes parker s 3 series are intended to be used for sealing straight thread tube fi ttings in a boss. Designing the parts of an application where o rings will be applied is broadly termed o ring groove design. Both of these bosses use the same o ring but parker seal. The o ring in the face of the straight thread male end seals against the flat face female seat and is mechanically held in place by a swivel nut.