Applications · 14 equipment groups
O-Ring Applications
Start from the machine, seal position and service conditions—not the industry name. Use these routes to decide what must be known before material, size, hardness or purchasing.
By equipment
Choose by equipment and seal position
Each card opens the application guide where one is published, or sends the details for an engineering review.
Hydraulic
Rod, piston or static fitting? Separate motion and seal position, then add fluid, temperature, pressure cycle and geometry.
Open Hydraulic GuidePumps
Separate static housing and cover joints from rotating shaft boundaries. Do not assume an O-ring is the primary shaft seal.
Open Pumps GuideValves
Split stem, seat and body/bonnet locations. Oscillating stems, seat closure and static body joints need different checks.
Open Valves GuideAutomotive & Fuel
Identify gasoline, diesel, alcohol blend, engine oil or ATF before screening material; “fuel resistant” is not one condition.
Open Automotive & FuelWater Systems
Separate potable water, chlorine/chloramine service, filtration, seawater and pump conditions; approvals stay compound-specific.
Send a water-system RFQFood & Pharma
Check product contact and CIP/SIP exposure separately, then verify exact compound/product documentation.
Send a food/pharma RFQSemiconductor & Vacuum
Treat leakage, permeation, outgassing, plasma chemistry, wet chemistry and purity as separate engineering questions.
Send a semiconductor/vacuum RFQAI Liquid Cooling
Cold plates, manifolds, quick disconnects and coolant loops are under engineering review. Start with the exact coolant formulation and interface geometry.
Send a liquid-cooling RFQEngine & Powertrain
Cooling, lubrication, crankcase/cylinder-head and drivetrain routes built from verified service/application evidence.
Send an engine RFQCoffee & Espresso
Brew, automatic-machine, boiler, portafilter and steam/hot-water sealing routes.
Send a coffee-machine RFQPneumatic Tools
Internal air sealing, nailer/stapler assemblies and repair-kit routes.
Send a pneumatic-tool RFQWater Softener & Plumbing
Control, faucet, spout, cartridge and watering-connector sealing routes.
Send a plumbing RFQAppliance & Cleaning
Dishwasher, cleaning-equipment, hose, wand and connector sealing routes.
Send an appliance RFQHVAC & Refrigeration
Compressor, refrigerant-line, condenser/evaporator and refrigeration sealing routes.
Send an HVAC RFQEquipment not listed?
Start from what you already know: the fluid, the size, the failed seal or the groove.
Choose by what you knowBy what you know
Choose by what you already know
I know the machine or component
Use the application clusters above to identify the real seal position before choosing material.
See the equipment routesI know the fluid or chemical
Start with Chemical Compatibility, then bring the result back to the real temperature, motion and geometry.
Chemical CompatibilityI know the size or standard
Use the Size Guide and Finder for ID, cross-section, material and hardness; do not infer application approval from a catalog match.
Size FinderI have a failed O-ring
Use the damage pattern—extrusion, abrasion, compression set, swelling, cuts or spiral damage—to decide what to inspect next.
Failure diagnosticI know the groove or hardware
Use Engineer Pro only when the actual seal mode matches a supported geometry; unsupported profiles go to review.
Engineer ProI need a certificate or compound document
Keep the exact standard or approval request tied to the exact product/compound; use RFQ when the evidence is not already verified.
Request with the document needFailed seal
Use the failed seal to choose the next route
Swelling / softening
Inspect first: Exact media, mixture, additives and temperature
Chemical CompatibilityFlattening / poor recovery
Inspect first: Compression, temperature, time and compound behavior
Compression-set / design reviewNibbling / extruded edge
Inspect first: Clearance, pressure excursion, eccentricity and deformation
Engineering / extrusion reviewAbrasion / polished wear
Inspect first: Surface, contamination, lubrication and motion
Dynamic application routeFresh cuts / shaved areas
Inspect first: Lead-in, sharp edges, alignment and assembly method
Installation reviewWorkflow
Use the tools in the right order
- 01Choose the application route and exact seal position. Equipment routes
- 02Screen the material against the actual media, temperature and service mode. Chemical check
- 03Confirm geometry and dimensions; use Engineer Pro only for supported modes. Engineer Pro
- 04Use the Finder after size, material and hardness are resolved. Open Finder
- 05Use RFQ when geometry, compound, documentation or service conditions remain uncertain. Request engineering review
Evidence boundaries
- Material family is screening. NBR, FKM, EPDM, Silicone, FFKM and other family names do not by themselves approve a compound for a specific fluid, pressure, temperature or machine.
- Catalog match is not stock or approval. The Finder confirms a catalog configuration route. Inventory, application suitability and documentation are separate checks.
- Compliance belongs to exact evidence. FDA, NSF, USP, 3-A or other claims must map to the exact product/compound and valid document scope.
Next step
Know the size? Start from the common ones
Most equipment uses standard AS568 or metric sizes. Pick one to see every listed material and hardness, or search your exact ID × CS.
FAQ
Frequently asked questions
Not sure which route fits? Send the machine, seal position, media, temperature and pressure for a review.
Request an engineering review