SEALING PRODUCTS / O-RINGS

PROSEALS is your one-stop shop for O-Rings.

PROSEALS works with leading OEM manufacturers to develop compounds and help design O-Ring glands as well as advise on material compatibility. Using our knowledge of materials we can develop custom compounds for critical applications.

The O-Ring is a very common seal and can be made of an elastomer, PTFE, or a solid or hollowed metal. O-Rings are primarily used for sealing and are put into a Gland that is cut into metal or other solid materials. The O-Ring and the gland make up the typical O-Ring assembly. PROSEALS carries a large inventory of AS568 standard sizes as well as metric and Mil Spec O-Rings. We are authorized distributors for Precix, Trelleborg, and Parco. PROSEALS offers two locations to serve our customers in North America and Europe, with facilities in USA and Germany that provide quality products and efficient service to keep your business running smoothly.
View O-Ring Catalog and Sizing Chart Contact us for O-Ring availability

Advantages of O-Rings:

O-Rings are very cost effective.
They seal over a wide range of temperature, pressure, and tolerances.
No critical torque on tightening preventing structural damage.
Light weight and require little space.
Where differing amounts of compression affect seal function with flat gaskets, an o-ring is not affected as the metal to metal contact is generally allowed for.

Standard Compounds:

Nitrile (NBR)

Operating temperature: –30 to +250 °F
70 durometer; 90 durometer;
FDA 70 durometer; NSF 70 durometer, Metric Sizes

Viton® (FKM)

Operating temperature: –15 to +400 °F
black 75 durometer, black 90 durometer
brown 75 durometer, Metric Sizes

Ethylene Propylene (EPDM)

Operating temperature: –60 to +250 °F
EPDM, EPDM/FDA and EPDM/FDA/NSF 61 in 70 durometer

Silicone (VMQ)

Operating temperature: –65 to +400 °F
70 durometer

Neoprene (CR)

Operating temperature: –40 to +225 °F
70 durometer

Hydrogenated Nitrile (HNBR)

Operating temperature: –25 to +300 °F
green 70 durometer

Teflon® Encapsulated Silicone

Operating temperature: –75 to +400 °F
O-Rings with Silicone core

Teflon® Encapsulated Viton®

Operating temperature: –15 to +280 °F
O-Rings with Viton® core

PTFE

Operating temperature: –300 to +500 °F
55 durometer, Shore D, Virgin PTFE

Specialty Compounds:

PROSEALS can offer a conductive FKM that has very low permeation in Flex Fuels and a strong ability to dissipate static charge.

PROSEALS developed a EPDM compound for use in sanitary applications that meets all of the following standards: NSF/ANSI STANDARD 61, KTW, WRAS, and DVGW.