Valves, Piping & Process Components
O-rings (EPDM, Viton, PTFE, silicone)
Product Description:
O-rings are elastomeric sealing components used in regulated manufacturing facilities to provide reliable sealing in static and dynamic applications across process, utility, and support systems.
Selection is based on media compatibility, operating conditions, regulatory requirements, and equipment design. Material choice is particularly important in regulated environments to ensure chemical resistance, cleanability, and long-term sealing performance.
Technical Specifications:
Common materials:
EPDM – widely used for water, steam, and CIP/SIP applications
Viton (FKM) – suitable for oils, solvents, and chemical service
PTFE – chemically inert applications
Silicone – high-purity and temperature-sensitive applications
Size range:
Standard AS568 sizes and metric equivalents
Hardness:
Typically 40 to 90 Shore A (material dependent)
Temperature capability:
EPDM: approximately -50 °C to 150 °C
Viton: approximately -20 °C to 200 °C
Silicone: approximately -60 °C to 230 °C
PTFE: up to approximately 260 °C
Pressure capability:
Application dependent, suitable for low- and moderate-pressure sealing
Design considerations:
Chemical compatibility
Compression set resistance
Cleanability and extractables where applicable