A well-known manufacturer of Perfluoroelastomer (FFKM/FFPM) parts is DuPont ™ with its own brand Kalrez ®. The principal monomer of both Chemraz and Kalrez is tetrafluoroethylene (TFE). They resist acetone, methyl ethyl ketone (MEK), potassium hydroxide, and most acids. Material innovations such as the range of unique Perfluoroelastomers provide the low-temperature capability of any FFKM down to -46°C (-51°F) 72 Hour delivery on British Standard BS1806 FFKM range (Temperature -25°C, +270°C) They resist hardening and embrittlement, the principal heat-related cause of seal degradation and failure. These O-rings are sized to the SAE standard AS568. And in high-vacuum semiconductor applications, Kalrez ® parts exhibit negligible outgassing over a wide temperature range. Fahrenheit (F ) Degrees in. Please contact us to order FFKM O-Rings, or to find out more information. 800.366.1320 sales@websealinc.com. Web Seal Inc. Rochester, NY. In addition to its outstanding chemical resistance, Kalrez ® parts are able to withstand an extremely wide range of process media. The operating temperature range is from -10°C to 230°C (-14°F to 446°F). SZ485 is also suited for many non-oxidizing dry process chemistries. Simriz® Compound: SZ486 Fluorezi® is the equivalent to Kalrez®, Chemraz® and Isolast®. Maximum operating temperature of 315 deg C but avoid water/steam & amines at high temps. 98% of products ordered ship from stock and deliver same or next day. Max Continuous Service Temperature This is the maximum acceptable temperature above which mechanical properties (tensile strength, impact strength) or electrical properties ( dielectric strength , linked to insulation properties) of a plastic part are significantly degrading, over the reasonable life time of the tested product. Within the perfluorelastomers, there are different type of compounds: Low temperature, High temperature, high chemical resistance, high steam resistance.
Material Temperature Guide. Kalrez 6375 O-rings are preferred over Kalrez 4079 for chemical-processing environments and applications involving steam. General Purpose : 7375 : 75 Kalrez ... Kalrez® Spectrum™ 6375 is designed to give outstanding performance in the widest possible range of chemicals and temperatures.
Kalrez® 1050LF A general-purpose compound for O-rings, seals, and other parts used in chemical process industries.
O-ring Tempurature Guide. Typical application environments are aggressive acids, bases, solvents, and steam. O-ring Temperature Ranges by o-ring compound temperature guidelines for o-rings and o-ring compounds . Service temperature range up to 327°C Kalrez ® retains its elasticity and recovery properties better after being exposed to high temperatures (up to 327°C/620°F), in comparison to other elastomers. Kalrez® Parts Heat Resistance Article Article ... Kalrez ® parts retain elasticity and recovery properties better than other high temperature elastomers. Aggressive chemicals Kalrez O-rings provides reliable, long term service with a wide range of industrial and electronic grade chemicals. Kalrez ® 4079 compounds feature low compression set performance o-rings. DuPont may claim higher limits.
Maximum recommended service temperature of 288ºC (550ºF).
Outstanding hot air ageing properties with low compression set at high temperatures. SZ485 can be used in place of Kalrez® compound 6375 when temperature are bellow 230°C. Kalrez 6375 O-rings are preferred over Kalrez 4079 for chemical-processing environments and applications involving steam. Simriz® Compound: SZ486 KALREZ packing is available in KVSP-500 (260C [500F] service).
Datasheets FFKM. KALREZ with Vespel CR-6100 Packing The KALREZ pressure/temperature limits referenced in this bulletin are for Fisher valve applications only. Suitable for many applications and was one of the first materials to be developed in the Kalrez range.