Kalrez® 6221 O-Rings, supplied by Hydro Seals, are specifically developed for the pharmaceutical, biotechnology, and high-purity processing industries. Kalrez® 6221 meets strict regulatory standards including FDA, USP Class VI, and 3-A Sanitary, ensuring full compliance for sterile and hygienic applications. This grade exhibits excellent resistance to CIP/SIP chemicals, steam, ozone, peroxide, and aggressive cleaning cycles, making it ideal for sterile production environments. With thermal stability up to approximately 260°C, Kalrez® 6221 maintains sealing integrity through repeated sterilization procedures. Hydro Seals provides Kalrez® 6221 O-rings in a wide selection of metric, AS568, and custom-engineered sizes, ensuring tight sealing for pumps, valves, bioreactors, chromatography equipment, filtration systems, and high-purity lines. Perfect for: Pharmaceutical | Biotechnology | Food & Beverage | Sterile Manufacturing | Clean-In-Place Systems

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