Static sealing and extrusion support
O-Rings, Sealing Rings & Inflatable Seals
O-rings handle static and selected dynamic sealing needs, while backup rings support extrusion resistance. Fitofit helps align material, media, pressure, and groove context.
Selection guide
Use cases, failure modes, and material direction.
This page is written to make the enquiry more useful, not just list a product name.
Applications
- Static grooves
- Hydraulic assemblies
- Pneumatic assemblies
- Backup support under pressure
Common issues
- Extrusion
- Compression set
- Chemical swelling
- Temperature-driven hardening
Materials
NBR / FKM / PTFE
Final selection depends on pressure, speed, temperature, media, and hardware condition.
Enquiry checklist
Send these details for faster selection.
Product family or seal location
Drawing, sample, or groove dimensions
Pressure, speed, and temperature
Fluid/media and operating environment
Related seal families
A better seal choice often includes companion components.
FAQ
Common questions before enquiry.
When is a backup ring needed?
Backup rings help when pressure and extrusion gap conditions can push an O-ring out of its groove.
Which material should I choose?
Material depends on fluid media, temperature, pressure, movement, and chemical compatibility.
Engineering support
Need o-rings & backup rings matched to your application?
Share the product family, dimensions, pressure, temperature, media, drawing, or sample photo. Fitofit will help narrow the right direction.