X-Ring, Quad Ring

The X-ring, or, quad ring, is a four-lipped seal with a specially developed sealing profile providing twice the number of sealing surfaces as an O-ring. The four-lobed quad seal design provides lower fiction than an O-ring, and with the squared cross section, resists spiral twist. Molded X-ring seals are available in standard, non-standard, and custom molded dimensions.

Specs

Pressure [Low, Medium, High with backups],

Dynamic Service Speed [Low, High],

Seal Directionality [Bidirectional]

Manufacturing Method [Compression, Injection],

Common modifications Surface modifications and coatings

Catalog Standards Fits standard o-ring glands

Customizable Yes

Comparative cost: $ / $$

Special Applications

Designed to as drop in replacement for o-rings but gland modification may be preferred. Multiple seal lobes can help maintain seal under eccentric conditions, resists rolling/twisting in reciprocating dynamic service, special consideration: extrusion resistance

More Information

Sizing standards

Originally designed to be interchangeable with standard O-ring gland configurations, X-rings are available in common standard sizes and can be molded in custom sizes and tighter than standard tolerances

In a hurry? Compression molded x-rings in 2 weeks

For unique size and material combinations use our Rapid Prototype Program and we will ship in 2 weeks. Compression molded parts run in production capable tooling. Contact us for details about our Rapid Prototypes program.

Regulatory and Compliance

Materials and workmanship standards including FDA White List, USP Cl VI, WRAS, NORSOK, NSF 61, UL, NSF 51, EC 1935, NAS 1613, AMS3304 (VMQ), MIL-R-25988 (FVMQ), AMS-R-83248 (FKM), AMS7257 (FFKM)