In pumps, valves, reactors, flange joints and other equipment, Kalrez® parts - whether they are O-rings, custom shapes or valve stem packing systems - are proving their value year-in and year-out. Their combination of long-term resistance to chemical attack, swelling and elevated temperatures allows chemical companies to reduce costly seal failures, improve mean time between replacements, control fugitive emissions, improve process productivity and avoid contamination of the process stream.