M&P Sealing is an authorized distributor of Kalrez® products. It is a perfluoroelastomer that combines the elastic properties of fluorocarbon (FKM) with the outstanding chemical resistance and the high temperature stability of polytetrafluoroethylene (PTFE). Kalrez® seals can be used for applications in high temperature service up to approximately +316°C (600°F) and in intermittent service up to +343°C (650°F). Kalrez® O-Rings are available in inch and metric dimensions to ISO 3601, AS 568 A, BS 1806 and BS 4518, cords, foils, molded slabs, and custom molded parts.
Advantages
The Kalrez® series of gaskets provides a full range of performance, designed to seal in the most severe and the most common applications. It has wide chemical resistance and superior performance, especially in high temperature applications in different media.
Brochures and Resources
Kalrez® O-rings
O-rings made from standard compounds are available from stock.
Many AS-568A, metric, and JIS O-ring sizes in commercial compounds may be available for immediate shipment from your local authorized Kalrez® perfluoroelastomer parts distributor. In addition, DuPont™ maintains inventories of all AS-568A, metric, and JIS O-ring sizes. Please call your local authorized Kalrez® distributor for current inventory status and estimated shipment dates.
Kalrez® Valve Stem Packing
Kalrez® Valve Stem Packing (KVSP) combines the best attributes of PTFE and Graphite with Kalrez® elastomeric sealing capability. It can significantly reduce fugitive emissions and improve process control through the innovative use of Kalrez perfluro elasomers. Other packing systems can meet fugitive emission requirements, but restrict valve movement, leading to inconsistent process control. Kalrez Packing Systems overcome these deficiencies, as well as reaching leak rates to near bellows performance. Call the Sealing Solution Pros at M&P to get a fast quote on all our Kalrez® prooducts.
Custom Perfluoroelastomer Seals
DuPont™ Kalrez® custom elastomer seals are designed and molded to your specific requirements. Typical custom perfluoroelastomer (FFKM) shapes include valve seats, diaphragms, gaskets, packer seals, T-seals, column fittings, and more.
Custom parts and components with unusual geometries can be designed and molded in Kalrez® perfluoroelastomer parts to meet the needs of specific sealing applications. Examples include special profiles and rectangular-shaped seals for slit valves and windows: metal-bonded parts, profiled quartz tube seals, diaphragms, lip seals, hollow O-rings, tubing, and other specialized configurations.
