ParoFluor Ultra V8545-75 FFKM O-Ring: Compound, Equivalents, UK Suppliers
Verified by Rachel Mayfield, Supply Chain Analyst - April 2026
ParoFluor Ultra V8545-75 is a 75 Shore A perfluoroelastomer (FFKM) manufactured by Parker Hannifin. It seals continuously to 318°C and is specified for refinery and similar service. Parker FFKM thermal grade.
Specifications
| Property | Value |
|---|---|
| Compound | V8545-75 |
| Manufacturer | Parker Hannifin |
| Maximum continuous temperature | 318°C |
| Minimum temperature | 0°C |
| Hardness | 75 Shore A |
| Colour | Black |
| Material family | Parker FFKM thermal grade |
Where ParoFluor Ultra V8545-75 is used
ParoFluor Ultra V8545-75 is specified for: Refinery, chemical process.
ParoFluor Ultra V8545-75 equivalents from other FFKM manufacturers
If ParoFluor Ultra V8545-75 isn't available, these compounds from competing manufacturers have similar chemistry and operating windows. Always verify against your actual fluid and temperature before substitution.
| Equivalent compound | Manufacturer | Max temp | Hardness | Direct match |
|---|---|---|---|---|
| Kalrez 4079 | DuPont (Chemours) | 316°C | 75 Shore A | ✓ |
Available O-ring sizes
ParoFluor Ultra V8545-75 is supplied in:
- BS 1806 sizes: BS001 to BS932 (UK / EU standard, imperial-origin metric)
- AS568 sizes: -001 to -932 (US standard, dimensionally identical to BS 1806)
- ISO 3601 sizes: metric IDs from 2 mm to 670 mm with cross-sections 1.0 mm to 7.0 mm
- JIS B 2401: P, G, S series (Japanese OEM equipment)
- Custom / non-standard: built-to-print for OEM applications
For a list of sizes commonly stocked in the UK, see the BS 1806 size chart, ISO 3601 metric chart, or contact a UK seal specialist below.
UK availability
ParoFluor Ultra V8545-75 is supplied in the UK by FFKM specialists carrying multiple manufacturer lines. Lead time is typically 2-5 working days for stock sizes, 4-8 weeks for custom-moulded sizes. Use the form below to get a quote from a UK FFKM specialist.
References
- Parker Hannifin — Manufacturer
- ISO 3601 O-ring sizes
- BS 1806
Frequently Asked Questions
What is ParoFluor Ultra V8545-75 used for?
ParoFluor Ultra V8545-75 is a 75 Shore A FFKM (perfluoroelastomer) compound from Parker Hannifin. It is used in Refinery, chemical process. Continuous service temperature: 0°C to 318°C.
What is the temperature rating of ParoFluor Ultra V8545-75?
ParoFluor Ultra V8545-75 has a continuous service temperature range of 0°C to 318°C. Short-term excursions above the maximum are possible but degrade service life.
What is the equivalent of ParoFluor Ultra V8545-75?
Direct equivalents to ParoFluor Ultra V8545-75 include: Kalrez 4079. Always confirm chemical compatibility against your specific fluid before substitution.
How much does ParoFluor Ultra V8545-75 cost?
FFKM O-rings such as ParoFluor Ultra V8545-75 are typically £30 to £500 per piece depending on size, with custom or large-bore parts at the upper end. Get a current quote via the form on this page.
Where can I buy ParoFluor Ultra V8545-75 in the UK?
ParoFluor Ultra V8545-75 is supplied in the UK by independent FFKM seal specialists with multi-brand inventory. Lead time is 2-5 working days for stock BS/AS568 sizes, 4-8 weeks for custom-moulded sizes.
References
- Parker Hannifin — Manufacturer
- ISO 3601 O-ring sizes
- BS 1806