Sea & Sea YS-120TTL Duo w/5 Pin (S) Silicone O-Ring Set

Oh rings of the epitome of elegant engineering the ring itself costs only a few cents and the groove it goes in is simple and easy to manufacture but despite the simplicity the resulting seal is able to reliably hold many thousands of psi of pressure o rings are definitely a machine design component you'll want to be familiar with and in this video we're gonna tell you all about how to design seals with them an o-ring forms a seal when it's squeezed between two adjacent surfaces as the ring is squeezed a contact stress between the o-ring and the surfaces emerge the fluid pressure is lower than the contact stress then the seal prevents the fluid from escaping in general as the fluid pressure increases the o-ring is compressed even tighter into the groove further increasing the contact pressure and hence helping the o-ring seal even better this positive feedback loop of increasing pressur