Kalrez® O Rings and Seals
Vast Collection Of Kalrez® O Rings From UK Stock
M Barnwell Services is one of the UK’s leading independent Dupont™ Kalrez® O Rings and Seals providers. Our Dupont™ Kalrez® O Rings, seals, and gaskets offer exceptional heat resistance and chemical stability against 1,800+ chemicals, making them a versatile and high-performance elastomer choice. Their durability presents a cost-effective Metal O Ring alternative without compromising strength or reliability.
Popular Stocked Dupont™ Kalrez® O Rings and Seals we supply:
- Kalrez 7075: 75 Shore A, Min Temp -20° C / -4°F, Max Temp 327°C / 620°F, Black
- Kalrez 4079: 75 Shore A, Min Temp -19° C / -2°F, Max Temp 316°C / 600°F, Black
- Kalrez 6221: 70 Shore A, Max Temp 260°C / 500°F, White
- Kalrez 6375: 75 Shore A, Min Temp -20° C / -4°F, Max Temp 275°C / 527°F, Black
- Kalrez 6380: 80 Shore A, Min Temp -22° C / -8°F, Max Temp 225°C / 437°F, Cream
- kalrez 7090: 90 Shore A, Min Temp -26° C / -15°F, Max Temp 325°C / 617°F, Black
- Kalrez 0040: 70 Shore A, Min Temp -42° C / -44°F, Max Temp 220°C / 428°F, Black
- Kalrez 0090: 95 Shore A, Min Temp -21° C / -6°F, Max Temp 250°C / 482°F, Black
- Kalrez 7777, 7797, 7800: 75/90/75 Shore A, Max Temp 325°C / 617°F, Black
- Kalrez 1050LF: 82 Shore A, Max Temp 288°C / 550°F, Black
Our skilled team aids in all production stages – from material and size decisions to prototyping, testing, and final manufacturing. M Barnwell Services and its manufacturing partners ensure batch traceability for diverse applications. Contact the team today.
What sets Dupont™ Kalrez® O Rings and Seals apart?
- Chemical processing temperature range: up to 326° C.
- Prolonged protection against swelling and embrittlement in harsh, abrasive settings.
- Oil and gas industry applications temperature range: up to 287° C.
- Exceptional resistance to corrosion and maintaining durability under elevated temperatures and pressures.
- Food and pharmaceutical application temperature range: up to 260° C.
- Heat and chemical resistance while safeguarding against contamination. Dupont™ Kalrez® O Rings and Seals adhere to FDA compliance standards.
- Semiconductor applications temperature range: up to 325° C.
- Remarkable chemical resilience and thermal stability.
- A hardness of 75 for standard products and range from 82 to 95 for specialty products.
Engineered for top-tier performance, Dupont™ Kalrez® elastomer components have been a favored FFKM choice for three decades. Noteworthy benefits encompass:
- Enhanced productivity.
- Lower maintenance expenses.
- Sustained process purity.
- Heightened safety.
Alongside Dupont™ Kalrez® O Rings and Seals, we also offer a comprehensive range of other quality FFKM materials including Perlast®, Simriz™, Elast-O-Lion®, Parofluor®, Kalrez®, Chemraz®, Isolast®, Ekraz®, Kaflon™ and Valqua (Armor, Fluoritz). Visit the FFKM material page to learn more.
If you would like more information about our range, download our catalogue, or contact a team member.
Explore the provided links for precise technical information to guide your fluid sealing choices.
- ISO3601 (BS1806) Imperial Range
- Metric Range
- BS4518 Metric Range
- O Ring Quality Standards
- Specialist Oilfield Elastomers
- FFKM Materials
If you are technical and understand your requirements please use the RFQ Form.
You Are In Safe Hands
As a reliable partner to global OEM manufacturers, M Barnwell Services ensures quality products and an exceptional service experience. With £5.1 million in sealing inventory and five UK branches strategically positioned, we’re primed to meet and surpass your needs.
For additional information about our range, download our catalogue, explore the Seal Maker Page, or contact our team.
E & OE. M Barnwell Services endeavour to make sure that all content is correct. We have gathered this information from manufacturing partners. (Kalrez® is a trademark of Dupont™ Company. M Barnwell Services does not manufacture Dupont™ products).