Metal O Ring

Most Common O-Ring Design Flaws

Designing an O-Ring involves rigorous testing and attention to detail. In order to meet high-quality standards — like in the aerospace and medical industry – we cannot leave room for error.

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O-ring seals are some of the most important components in any pressure system. Simple in design, these mechanical seals serve a complex function.

Gas filled metal O Ring for high temperature and moderate pressure applications. OGI for internal pressure and OGE for external pressure.

Spring-energised metal O Ring for Internal pressure (OSI) and (OSE) for external pressure are designed for extreme low leakage at moderate pressures.

Metal O Ring

Metal O Ring Seals

Internally (OVI) or externally (OVE) vented O Rings are designed for higher pressure. Besides the own seating load the seal is also energised by the system pressure.

Non-vented rings (OI & OE) are designed for lower pressure ranges. The perfectly closed O Ring design avoids ingress of the media into the seal. Moderate load, moderate pressure capability.

The lesson:

The combination of stresses that act on O-rings can be complex and difficult to evaluate. Because of this, it’s important to be aware of common O-Ring design flaws to help prevent failures within your system. And remember, with flaws or without flaws, it’s equally important that both the O-Ring compound and size be thoroughly tested throughout the process.