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FFKM Manway Gaskets and Handway Gaskets

FFKM (perfluoroelastomer) manway gaskets and handway gaskets are designed for large diameter sealing applications in tanks, vessels, and processing equipment where exposure to aggressive chemicals, high temperatures, and pressure cycles can quickly degrade standard elastomers. Manway gaskets and handway gaskets play a critical role in maintaining a reliable seal for access ports used in cleaning, inspection, and maintenance, making material performance essential. In addition to manway gaskets and handway gaskets, FFKM is widely used in O-rings, custom molded parts, and tubes for complete sealing system solutions.


At Canyon Components, Canrez® FFKM manway gaskets and handway gaskets are engineered to provide exceptional chemical resistance, thermal stability, and long-term sealing performance in demanding environments. Compared to Kalrez®, Chemraz®, Simriz®, and Parofluor®, Canrez® FFKM offers excellent performance with improved availability and competitive pricing, making it a strong solution for both standard and custom manway gasket and handway gasket applications.


FFKM manway gaskets and handway gaskets are commonly manufactured using molded, compression-molded, continuous molded, or slab-cut fabrication methods, allowing for large diameter and custom geometry seals. Canyon Components can support infinitely large O-ring style gaskets, flat gaskets, and custom profiles, ensuring compatibility with a wide range of vessel and equipment designs. Our engineering team works closely with customers to ensure proper material selection, gasket design, and sealing performance for each application.


Common names include: FFKM, Perfluoroelastomer, Perfluorinated Rubber. Trade names: Canrez®, Kalrez®, Chemraz®, Simriz®, Parofluor®.

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

FFKM Materials Available for Manway Gaskets and Handway Gaskets

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 FFKM Manway Gaskets and Handway Gaskets, O-Rings, & Custom Parts

  • Canrez® FFKM manway gaskets and handway gaskets provide exceptional chemical resistance to aggressive process fluids, acids, solvents, and cleaning chemicals



  • Available as flat gaskets, O-ring style seals, and custom profiles, tailored to specific manway & handway designs


  • FFKM slabs can be precision cut into custom manway gaskets and handway gaskets, allowing flexibility in size and geometry


  • Canrez® FFKM gaskets exhibit low compression set, maintaining sealing force over repeated opening and closing cycles


  • FFKM O-rings, gaskets, and custom parts provide excellent resistance to CIP and SIP processes, including high temperature steam exposure


  • Available in standard and fully custom configurations, including reinforced or specialized designs for demanding applications


  • Canrez® FFKM offers strong availability and competitive pricing compared to Kalrez®, Chemraz®, and Simriz® alternatives

Limitations of FFKM Manway Gaskets and Handway Gaskets, O-Rings, & Custom Parts

  • FFKM manway gaskets and handway gaskets have a higher upfront cost compared to EPDM, FKM, or other standard gasket materials


  • Large diameter custom gaskets may require specialized manufacturing methods and longer lead times, depending on design


  • Some applications may not require full FFKM performance, making alternative materials more cost-effective for less aggressive environments


  • Proper installation is critical to ensure uniform compression and effective sealing across large diameters


  • Custom gasket designs may require engineering validation and prototyping to ensure optimal performance

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 FFKM Manway Gaskets and Handway Gaskets

FFKM manway gaskets and handway gaskets, along with O-rings, custom parts, and tubes, are widely used in industries where large diameter sealing, chemical resistance, and temperature stability are critical. Canrez® FFKM manway gaskets and handway gaskets provide long service life, reduced maintenance, and improved process reliability, making them an excellent choice for demanding vessel sealing applications. Canyon Components works closely with customers to ensure proper material selection and gasket design for each system.


Have questions about FFKM manway gasket solutions? Canyon Components can help you design and source Canrez® FFKM manway gaskets and handway gaskets, O-rings, custom parts, and tubes, including large diameter seals, slab-cut gaskets, and custom molded configurations tailored to your application.

Chemical Processing

Used in FFKM manway gaskets and handway gaskets for reactors, storage tanks, and process vessels, where resistance to aggressive chemicals is essential

Pharmaceutical & Bioprocessing

Applies FFKM manway gaskets and handway gaskets in high-purity vessels and processing systems, where cleanliness and compliance are critical

Food & Beverage Processing

Utilizes FFKM manway gaskets and handway gaskets in processing tanks and sanitary systems, ensuring resistance to cleaning chemicals and steam sterilization

Oil & Gas Industry

Employs FFKM manway gaskets and handway gaskets in tanks and vessels exposed to hydrocarbons and aggressive process media, ensuring long-term sealing performance

Industrial & OEM Equipment

Used in FFKM manway gaskets and handway gaskets for custom tanks, vessels, and large-scale equipment, where durability and chemical resistance are required

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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