Gaskets - O-Rings

O-Rings are used in processing pipeline systems for the food, dairy, beverage, pharmaceutical and bio tech industries. The products are manufactured from EPDM, Viton®, Buna-N, and Silicone. All compounds meet the criteria of the FDA, and some compound formulations have also been certified and accepted by the USDA, 3-A Sanitary Standards and USP Class VI certifications.


For Popular Centrifugal and Positive Displacement Pumps and Equipment

Available in Buna-N, Viton®, EPDM and Silicone All Standard Sizes.

Available in small quantities or several thousand.

Contact us for pricing and availability.


For Waukesha Pumps - Standard and Universal

Available in Buna-N, Viton® and EPDM.

Contact us for pricing and availability.


Kalrez® O-Rings for FDA and Class VI applications.
  • Kalrez"O"Rings in compounds 6230 (black) and 6221 (white) are available in most AS568A sizes and selected metric sizes.
  • Prefluoroelastomer part provides the ultimate sealing performance for maximum efficiency with FDA compliance
  • Resistant to high operating temperatures up to 260° C (500° F)
Click to view STI's Kalrez Gaskets Page

Kalrez is a registered trademark of DuPont Elastomers


FDA Beverage O-Rings

Newman soft drink o-rings have been specifically developed for excellent compression set and high temperature resistance. These o-rings are resistant to sodium hydroxide and other caustic solutions and will not harden or shrink. Our beverage o-rings are available in four solid colors; red, blue, green and yellow, as well as the standard black and white. Newman Sanitary Gasket is the largest manufacturer and has the largest inventory in North American of gaskets and O-rings available for the Dairy, Food and Beverage processing industries.