Gaskets & O-Rings

Sanitary Sealing for biopharmaceutical industry

ESI offer a wide range of sanitary sealing solutions for the biopharmaceutical industry using Newman’s elastomers which provide incomparable sealing performance for critical bioprocess applications. Newman’s gaskets and 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, as well as gaskets made with Teflon® fluoropolymer.

All compounds meet the criteria of the FDA, and some compound formulations have also been certified and accepted by the USDA, and USP Class VI certifications




  • Mini Clamp Gaskets
  • Standard Gaskets
  • Flanged Clamp Gaskets
  • Mini Envelope Clamp Gaskets made with Teflon® fluoropolymer
  • Envelope Clamp Gaskets made with Teflon® fluoropolymer
  • Silverback™ Mini Clamp Gaskets
  • Silverback™ Clamp Gaskets
  • Buna-N
  • Viton®
  • EPDM
  • Silicone (white)
  • Silicone (clear platinum cured)
  • Teflon® fluoropolymer with Viton/ EPDM fillers
  • PTFE and 316 stainless steel fibres
  • Sizes: 1/2″ to 12″
  • Buna-N
  • Viton
  • EPDM
  • Silicone
  • All standard sizes