Captive o-ring face seal, and method of making same

Details Captive o-ring face seal, and method of making same Captive o-ring face seal, and method of making same

F - Mech Eng,Light,Heat,Weapons

16

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F16J 15/10 (2006.01) B21H 7/18 (2006.01) B23P 6/02 (2006.01) F16J 15/06 (2006.01) F16L 19/02 (2006.01) F16L 23/22 (2006.01)

Patent

CA 2159625

A fitting body is pro vided with a lip that pro trudes radially from at least onc of the side walls of the seal groove in the sealing face toward the other side waU to form an underwt whereby an annular seal is trapped axially behind the lip to prevent the annular seal from falling out of the groovc. The lip is formed by forming the fitting body with a ledge that is integral with the fitting body and protrudes axially from the sealing face adjacent one of the side walls of the groove in the sealing face. The ledge is then flattened to form the lip and an annular seal such as an elastomeric O-ring seal is then inserted into the groove with the an- nular seal being mechani- cally trapped axially behind the lip to prevent the annu- lar seal from falling out of the groove.

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