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.

O ring boss seal.

A number of common seal types t seals u cups v packing and other devices have been and are still used for both dynamic and static seals. The design charts below show the standard boss designs that are used for this purpose. 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. Choose from our selection of o ring boss fittings including stainless steel pipe and pipe fittings iron and steel pipe and pipe fittings and more.

This system differs from others in that an additional nut is tightened over an o ring into a chamfered area creating a fluid tight seal. These charts list port dimensions per as5202 and j1926 and fitting ends per as4395. In an orb seal an additional nut is tightened over the o ring into a chamfered area creating a fluid tight seal. In an o ring boss system a male threaded part is inserted into a female threaded part providing a mechanical seal.

The as568 901 through 932 o ring sizes are used for sealing straight thread tube fittings in a boss. When compared with an o ring these other seal types may show one or more design disadvantages which might be overcome by use of an o ring.