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Kalrez® FFKM O-Rings for Valves and Pump Sealing

Kalrez® FFKM O-rings for valves and pump sealing are engineered for demanding fluid handling applications where chemical resistance, temperature stability, and long-term reliability are critical. These perfluoroelastomer O-rings are widely used in valves, pumps, compressors, and fluid transfer systems exposed to aggressive chemicals, hydrocarbons, solvents, and high temperatures. Kalrez® FFKM materials provide excellent resistance to swelling, compression set, and chemical attack, helping maintain sealing integrity in systems where leakage or downtime can lead to major operational issues.


Canyon Components supplies Kalrez® FFKM O-rings alongside Canrez® perfluoroelastomer alternatives, offering a competitively priced solution with fast lead times and extremely high quality. Our team supports compound selection based on chemical compatibility, temperature range, pressure conditions, and dynamic sealing requirements to ensure reliable performance in valve and pump systems involving O-rings, gaskets, and custom parts.


Common names include: Perfluoroelastomer O-rings, FFKM valve seals, FFKM pump seals

Trade names include: Kalrez®, Canrez®, Chemraz®, Parofluor®

FFKM O-rings from Canyon Components providing excellent chemical, heat, and compression resistance in critical sealing applications.

Other FFKM Offerings - Canrez®

The Canrez® range of perfluoroelastomer (FFKM) materials, O-rings, gaskets, & custom molded parts are at the leading edge of polymer technology. Proven in the field year after year, Canrez® materials, O-rings, gaskets, & custom molded parts have been developed to offer superior sealing solutions with enhanced high temperature performance and fantastic chemical resistance at an extremely competitive price! Canrez materials are comparable, and sometimes superior to Kalrez®.

Canrez FFKM O-rings from Canyon Components, a Kalrez equivalent, offer exceptional chemical resistance and high-temperature sealing for semiconductor, pharmaceutical, and chemical processing industries.

Learn more about CanRez™

Learn more about CanRez™

Kalrez® FFKM Materials Available

This table shows many of our standard materials and links out to our O-ring store. Get in touch with us if you need a custom gasket, custom molded part, or non-standard geometry!

Canyon Components stocks Kalrez O-rings in AS568, JIS, and Metric sizes with custom molded FFKM part options.

Features of Kalrez® FFKM O-Rings for Valves and Pump Sealing

  • Kalrez® FFKM O-rings provide excellent resistance to aggressive chemicals, solvents, fuels, and hydrocarbons


  • FFKM materials maintain sealing performance at elevated temperatures often exceeding 260°C depending on compound selection


  • Kalrez® FFKM O-rings offer low compression set, supporting long-term sealing reliability in valve and pump systems


  • These materials resist swelling and degradation in demanding fluid handling environments


  • Kalrez® FFKM O-rings provide stable sealing performance in both static and dynamic sealing applications


Limitations of Kalrez® FFKM O-Rings for Valves and Pump Sealing

  • Kalrez® FFKM O-rings have a higher cost compared to FKM, HNBR, and other industrial elastomers


  • Lead times may vary depending on compound selection and size availability


  • Low temperature flexibility is limited compared to silicone and other low temperature elastomers


  • Mechanical wear resistance may be lower than HNBR or polyurethane in highly abrasive dynamic applications


  • Over-specifying FFKM O-rings in moderate chemical environments can increase cost without added performance benefit

Please consult a Canyon Components Engineer about your specific application and we will use our decades of experience to formulate a solution that fits your need.

Industrial Usage of Kalrez® FFKM O-Rings for Valves and Pump Sealing

Kalrez® FFKM O-rings are used in valve and pump applications where chemical resistance, temperature stability, and long-term sealing reliability are essential. These O-rings are widely specified in systems handling aggressive fluids, high temperatures, and continuous operating cycles. Selecting the right Kalrez® FFKM or Canrez® compound depends on fluid chemistry, pressure, temperature, and seal motion.


Canyon Components provides engineering support to assist with material selection, gland design, and sealing performance optimization. Our team can help evaluate application requirements and provide supporting documentation including Datasheets, TDS, Test Reports, MTR documentation, and MSDS or SDS resources to ensure reliable sealing performance in valve and pump systems.

Chemical Processing

Kalrez® FFKM O-rings are used in pumps and valves handling aggressive acids, solvents, and corrosive process chemicals

Oil and Gas Industry

FFKM O-rings are used in high pressure valves and pumps exposed to hydrocarbons and elevated temperatures

Semiconductor Manufacturing

Kalrez® FFKM seals are used in high purity fluid handling systems requiring low contamination and chemical resistance

Pharmaceutical and Biotechnology

FFKM O-rings are used in sanitary pumps and valves requiring low extractables and clean processing conditions

Industrial Fluid Handling Systems

Kalrez® FFKM O-rings are used in demanding pump and valve applications requiring long-term reliability and chemical compatibility

Please consult a Canyon Components Engineer about your specific application and we will use our decades of experience to formulate a solution that fits your need.

All Other FFKM Types Available

Canrez® FFKM O-Rings & Custom Parts
Canrez® FFKM O-Rings & Custom Parts

Canyon Components supplies Canrez® FFKM O-rings, equivalent to Kalrez®, Chemraz®, and Parker® O-rings, in AS568, JIS, and Metric sizes. These perfluoroelastomer O-rings provide exceptional chemical resistance, high-temperature stability, and long-term sealing performance for semiconductor, pharmaceutical, and chemical processing applications. Custom molded Canrez® parts available.

Kalrez® vs Canrez®: Comparing FFKM Sealing Solutions"
Kalrez® vs Canrez®: Comparing FFKM Sealing Solutions"

Compare Kalrez® vs Canrez® FFKM for O-rings, gaskets, and custom parts. Learn the differences in performance, availability, and cost to choose the best perfluoroelastomer for your application.

Kalrez FFKM O-Rings, Gaskets & Custom Parts
Kalrez FFKM O-Rings, Gaskets & Custom Parts

Canyon Components supplies genuine Kalrez® FFKM O-rings, gaskets, and custom molded parts with exceptional chemical resistance and high-temperature performance. Available in AS568, Metric, and custom sizes, with Canrez®, Chemraz®, and Parker® O-ring equivalents for semiconductor, pharmaceutical, aerospace, and chemical processing applications.

Parker Hannifin Parofluor FFKM O-Rings, Gaskets & Custom Parts
Parker Hannifin Parofluor FFKM O-Rings, Gaskets & Custom Parts

Canyon Components supplies genuine Parker Hannifin Parofluor FFKM materials for extreme chemical resistance and high temperature sealing. Compare Parofluor with Canrez® FFKM for O-rings, gaskets, and custom parts in demanding applications.

Chemraz FFKM O-Rings, Gaskets & Custom Parts
Chemraz FFKM O-Rings, Gaskets & Custom Parts

Canyon Components supplies Chemraz® FFKM O-rings engineered for the most demanding sealing applications. Known for extreme chemical resistance and high-temperature stability, Chemraz® O-rings provide reliable sealing in semiconductor, pharmaceutical, aerospace, and chemical processing environments. Alternatives include Kalrez®, Canrez®, and Parker® FFKM O-rings in AS568, Metric, and custom sizes.

Simriz® FFKM from Freudenberg: O-Rings, Gaskets, and Custom Parts
Simriz® FFKM from Freudenberg: O-Rings, Gaskets, and Custom Parts

Canyon Components is a distributor of Simriz® FFKM O-rings designed for extreme chemical resistance and high temperature applications. Compare Simriz® with Canrez® FFKM for O-rings, gaskets, and custom parts in demanding sealing environments.

Back to Elastomers Hub

Unlock Superior Performance with Canrez FFKM O-Rings - Explore High-Quality Sealing Solutions for Demanding Industrial Applications. Ensure High Chemical Resistance, Extreme Temperatures & Leak-Free Seals. Your Trusted Source for Canrez FFKM O-Rings.

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Viton Extreme ETP seals and O-rings from Canyon Components, offering superior chemical resistance and durability in extreme industrial environments.

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