Find A Better Fit With Custom Perfluoroelastomer Parts
Kalrez® custom perfluoroelastomer seals and parts can be made with unusual geometries to match unique sealing applications.
DuPont™ Kalrez® custom perfluoroelastomer parts combine high heat and chemical resistance. With unique, one-of-a-kind fit for superior sealing possibilities, Kalrez® can offer a variety of custom family shapes and standard geometries, including large and small parts. Kalrez® custom seals are available in a variety of compounds depending on the thermal, chemical and plasma resistance required.
Kalrez® custom and composite parts can be designed and molded to highly specific requirements to fit specialized equipment. Kalrez® slabs and sheets are also available in several compounds and sizes, supporting a wide range of flexible applications. Kalrez® parts offer high quality machined and molded prototypes.
Benefits of Kalrez® Custom Seals
- Meets the rigors of AS9100 aerospace standard quality certification; DuPont is a certified designer and manufacturer of seals and sealing devices per AS9100. (Manufacturing facility in Newark, DE)
- Proprietary technology for bonding compounds to a variety of materials, including aluminum, plastic, stainless steel, metal alloys, PEEK, brass, etc. Improves performance, and reduces cost by integrating the seal and substrate into one part.
- Overall, Kalrez® custom seals improve meantime repair, longer life and lower operating costs.
Available For a Range of Uses
Custom perfluoroelastomer parts available include:
- Valve seats
- Packer seals
- Column fittings
- KVSP (Kalrez® Valve Stem Packing Systems)
Types of Shapes
Examples of composite Kalrez® parts include:
- Special profiles and rectangular-shaped seals for slit valves
- Rubber to metal bonding parts, such as bonded door seals and bonded poppets
- Profiled quartz tube seals
- Lip seals
- Other specialized configurations
Expert Support, Including Finite Element Analysis
Advanced Finite Element Analysis (FEA) capabilities are available to help design new seal shapes, optimize compound selection and groove geometry, and model performance of parts in service. Use of FEA can shorten development times and produce innovative solutions for long-term sealing performance.
DuPont Centers of Excellence (COE) give customers the advantage and collaboration through application and testing expertise within our global network.
Chamber cleaning with NF3 / O2 plasma increased maintenance at Spansion due to seal erosion. Kalrez® 9100 parts improved productivity and reduced cost-of-ownership. Kalrez® 9100 parts were successfully qualified in both thin films and dry etch tools.
Due to the combination of extreme temperature, pressure and chemical environments, Kalrez® 0090 was used in a series of mechanical seals employed in the operation of boiler feed pumps for pressurized water reactors.
Kalrez® 7090 perfluoroelastomer parts offer an excellent combination of chemical, Rapid Gas Decompression (RGD) resistance , and high temperature resistance for O-ring applications in gas sweetening valves that handle glycol-based solvents.
Amine units for hydrogen sulfide removal (H2S) at high temperatures use elastomers like Kalrez® Spectrum™ 6380 FFKM parts for resistance to amines. 6380 helps extend MTBR of valves and pumps in amine service.
By switching from gasket seals of PTFE to custom gaskets of DuPont™ Kalrez® perfluoroelastomer parts in the sensor head of a process instrument refractometer used by the food, pulp and paper and chemical industries, process instrument manufacturer.
Kalrez® KVSP™ valve stem packing, a solution to help reduce fugitive emissions, valve leakage and provide improved control — saves BP Chemical over 56.000 £ per valve annually, cuts shutdowns.
INFORMATION & IDEAS
Kalrez® TriLobe™ Seals improve seal life in dovetail grooves. This design combines the excellent chemical, thermal and plasma resistance of Kalrez® perfluoroelastomer parts with a unique cross-sectional shape.
DuPont has a portfolio of chemical resistant elastomers and thermoplastics to match a broad spectrum of challenges – from aggressive automotive fuels to custom industrial equipment.