We supply FFKM orings, Kalrez orings and Chemraz orings, FEP, PFA, Aflas, TTV, PEEK, PTFE, Viton, FPM, FKM, HNBR, NBR orings at competitive prices for our clients.
Encapsulated o-rings are o-rings consisting of a seamless and uniform Teflon® FEP/PFA encapsulation/jacket which completely encloses a core material of either silicone or Viton® Elastomers. The combination of these components creates an o-ring that is virtually chemically inert and compression set resistant for use in harsh sealing environments.
Dupont™ is a science company with a large portfolio of products, materials, and services that meet the needs of markets in over 90 countries. Dupont™ is a part of DowDuPont, with the core values of safety and health, environmental stewardship, highest ethical behavior and respect for people.
Where is Dupont™ located?
Dupont™ is located globally, with locations scattered all across the world.
What is DuPont™ Kalrez?
DuPont™ Kalrez is a perfluoroelastomer compound that provides reliable, long-term sealing in extreme chemical and thermal environments.
The use of DuPont™ Kalrez elastomers results in reduced maintenance costs thereby improving productivity and uptime of critical manufacturing processes.
DuPont™ Kalrez has nearly inert chemical resistance allowing it to perform in the harshest environments while having the reliable sealing capability of an O-ring.
DuPont™ Kalrez offers more stability, more resistance, more effective sealing
The use of DuPont™ Kalrez creates an increased level of safety and a reduction in fugitive emissions.
Compounds can be manufactured to resist degradation in harsh chemicals thereby improving process purity.
DuPont™ Kalrez will handle extreme temperatures exceeding standard fluorocarbon materials such as Viton while maintaining excellent chemical resistance.
Typical applications of DuPont™ Kalrez would include chemical processing, oil and gas, and pharmaceuticals where purity of the product is essential. This same purity goes into wafer processing in the semi-con world to improve sealing reliability in processes that use high heat, with aggressive chemicals and plasma.
All compounds are manufactured to the highest quality standards with full lot traceability and quality assurance under ISO 9001. Some additional characteristics are:
Superior chemical resistance to more than 1800 chemicals
Service temperature range up to 327°C
Maintains sealing force to keep seals tight
Low compression set
Field proven in electronic processes
Long seal life in chemical and hydrocarbon processing
FDA and USP compliance
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DuPont™ Kalrez® Spectrum™ 6375
It has the most extensive chemical resistance properties, it can be used the environment of many chemical mediators coexistence, 260 ºC hot water and steam is the best
DuPont™ Kalrez® 4079
It has excellent chemical resistance, When used at high temperature, it has excellent compression and deformation characteristic. But pay special attention to the application of amino compounds, on the thermal cycle circumstances,the temperature should below 280 ºC
DuPont™ Kalrez® Spectrum™ 7075
7075 is a new product on the basis of the 4079, compare with 4079, 7075's compression and deformation rate is smaller, sealing ability is better, it can be used in 327 ºC high temperature environment.
DuPont™ Kalrez® Spectrum™ 6380
DuPont™ Kalrez® Spectrum™ 7090
DuPont™ Kalrez® 0090
DuPont™ Kalrez® Spectrum™ 0040
DuPont™ Kalrez® 1050LF
It is the most suitable material of Amino compound, hot water and general chemical chemicals resistance, heat resistance is also very good
DuPont™ Kalrez® 2035
It suits the environment of below 200 ºC hot water. water vapor,and Amino compound,It is the most suitable material of the Chemicals which include Ethylene oxide, propylene oxide ring structure.
DuPont™ Kalrez® 3108
material, it is the most suitable material of Styrene monomer, butadiene and other chemicals
Salient performance/Quality assurance: 1. Perfluoro (ether) rubber is invented by DuPont, DuPont is creator of it 2. Kalrez is the only product which the time of application is more than 30 years, it is proved a long-term reliable and secure product in a variety of harsh sealing conditions 3. Kalrez is the only product which from rubber to finished product all controled by DuPont,so ensures that the long-term stability of using of each product . 4. Traceability: Each individually wrapped, has a unique bar code, every single product can be traced back to any information 5. High temperature, high pressure. The maximum temperature can reach 327 ºC heat resistance 6. Chemical property is stable, resistance to hydrogen sulfide, benzene, oil, strong acid and alkali, the kinds of chemical medium are more than 1600. 7. Excellent tensile strength (TS~15-20MPa) 8. Extremely low compression permanent deformation(~20%-70h 200ºC) 9. Excellent sustained sealing ability The type of Kalrez O-RING: Japanese Industrial Standard: JIS (P/G/V/S/NW) American National Standards Institute: AS-568A European standard : K
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