Gland Depth x Groove Width (area of the gland) must be larger than the cross section area of the o-ring (Pi x R^2). Otherwise many bad things will happen to your design. Make sure the squeeze% is sufficiently high enough to seal, but low enough to allow dynamic movements. O-ring sealing, careful consideration must be given to the size of the O-ring in relation to the size of the glandular space into which the O-ring is being installed. The actual calculation for the cross section needed in an O-ring varies depending on whether it will be used in a dynamic or static application. In a dynamic situation.

O Ring Slot Dimensions

O-ring groove design for non-circular groove

O-ring groove design for non-circular groove

O Ring Slot Dimensions Comparison

Hi,
I am designing a static seal with an o-ring.
The particularity is that the groove is non-circular. It has an oval-like shape (see picture in link below).
I am wondering how to calculate groove dimensions.
The medium is compressed air of 10 bar.
Pressure is on the inside, so the o-ring is pressed to the outermost groove wall.
I was thinking to calculate the groove the standard way as if the o-ring was placed in a circular groove, using some online calculator or the Parker Handbook.
Then, I would calculate my oval groove so that the outside wall ('outside circumference') of the oval groove has the same length as the outside wall of the circular groove.
Groove width and depth according to the standard calculations.
Would this be an acceptable calculation method?
Kind regards
Ray