O-Rings for Water and Food Applications

O-rings used in drinkable water and edible food applications must meet the highest standards of safety and hygiene. These seals are essential for preventing contamination and ensuring the integrity of the final products.

Key Requirements for Drinkable Water and Edible Food O-Rings

  • Food-Grade Compliance: Must meet FDA or equivalent food-grade standards
  • NSF Certification: Required for components in drinking water systems
  • Non-Toxic Materials: No leaching of harmful substances into food or water
  • Sanitary Design: Easy to clean and sanitize to prevent bacterial growth
  • Temperature Resistance: Performance in varying temperatures, including hot sanitation processes
  • Chemical Resistance: Compatibility with cleaning agents and sanitizers

Common Applications

  • Drinking Water Systems: Sealing filters, pumps, and valves in water purification and distribution
  • Beverage Dispensing: Sealing taps, lines, and dispensing equipment for beverages
  • Food Processing Equipment: Sealing pumps, valves, and pipelines in food production
  • Dairy Processing: Sealing equipment in milk and dairy product processing
  • Food Packaging: Sealing components in food packaging machinery
  • Commercial Kitchen Equipment: Sealing components in food preparation and cooking equipment

Common Materials Used

Silicone

FDA compliant, excellent temperature range

EPDM

NSF certified, steam resistant

Viton® (FKM)

FDA compliant, chemical resistant

PTFE

FDA compliant, low friction

Standards & Certifications

O-rings for these applications must comply with stringent standards and certifications, including:

FDA 21 CFR 177.2600 NSF/ANSI 61 3-A Sanitary Standards EU 1935/2004 WRAS