AS568 X Rings Seals
The sealing principle of the X- ring is nearly the same as the O-ring sealing. The initial sealing is achieved by the diametrical squeeze in a right angled groove. The system pressure itself creates a positive sealing force. Following are some advantages of X rings:- With X-rings the standard grooves are deeper in comparison with O-ring glands. So diametrical squeeze is lower than with O-rings. This makes dynamic sealing possible with reduced friction.
The four-lobed configuration creates a more stable seal avoiding spiral twisting. This allows the use of a narrower groove width than a standard O-ring groove, however, it can also be used in a standard O-ring groove. Quad-rings® have the same dimensions as the AS568A O-ring sizes, also referred to as standard size O-rings, and are available in a variety of materials.