Kalrez® 9100 parts were tested in some of the most critical seal positions. In most HDPCVD processes elastomer sealing materials can be a weak link because of the need for seal replacement during preventive maintenance procedures. Kalrez® 9100 parts double or even triple the lifetime of seals in HDPCVD processes.
Kalrez® KVSP™ valve stem packing, a solution to help reduce fugitive emissions, valve leakage and provide improved control — saves BP Chemical over 56.000 £ per valve annually, cuts shutdowns.
Amine units for hydrogen sulfide removal (H2S) at high temperatures use elastomers like Kalrez® Spectrum™ 6380 FFKM parts for resistance to amines. 6380 helps extend MTBR of valves and pumps in amine service.
Kalrez® Spectrum™ 6375 O-rings for the chemical process industry are used as PTFE replacement in a wide range of chemicals. Dow AgroSciences have extended the lifetime of seals fitted to their product filling line from one day to an average of two months, an improvement of some 6000%, by replacing O-rings of PTFE.
Kalrez® Spectrum™ 6380 seals resist aggressive amines and oxidizers in gas sweetening treatments that damage most commonly used pump and valve seals.
Kalrez® Spectrum™ 7275, a specialty non-black perfluoroelastomer product, is made with a DuPont patented crosslinking system, and is suggested for seal applications where high resistance to oxidizing and reactive media is required.
By replacing metal O-rings with DuPont™ Kalrez® O-rings in gear pumps designed to operate in temperature up to 300 °C and pressure of 100 bar, Gather Industrie GmbH, Mettmann, Germany, has solved the problem of seal deformation.
Natural gas delivery is a challenge throughout the world. During its journey through miles of pipeline, natural gas can become contaminated with moisture, air and chemicals. Kalrez® parts solve sealing problems in natural gas sampling systems.
Kalrez® 7090 perfluoroelastomer parts offer an excellent combination of chemical, Rapid Gas Decompression (RGD) resistance , and high temperature resistance for O-ring applications in gas sweetening valves that handle glycol-based solvents.
Due to the combination of extreme temperature, pressure and chemical environments, Kalrez® 0090 was used in a series of mechanical seals employed in the operation of boiler feed pumps for pressurized water reactors.
A major chemical company switched to Kalrez® Spectrum™ 6380 perfluoroelastomer parts to improve amine resistance & extend mean time between repairs. Improvement of up to 3x in MTBR achieved in a mechanical seal for hot, aggressive amines.
Hilge-Pumpen selected Kalrez® seals for their chemical resistance and seal life performance in order to meet the stringent clean in place requirements demanded by the pharmaceutical, biotechnology and cosmetics industries.
By switching from gasket seals of PTFE to custom gaskets of DuPont™ Kalrez® perfluoroelastomer parts in the sensor head of a process instrument refractometer used by the food, pulp and paper and chemical industries, process instrument manufacturer.
Chamber cleaning with NF3 / O2 plasma increased maintenance at Spansion due to seal erosion. Kalrez® 9100 parts improved productivity and reduced cost-of-ownership. Kalrez® 9100 parts were successfully qualified in both thin films and dry etch tools.
Heavy duty hydraulic clamping systems developed and manufactured by Hilma-Römheld are used to hold large hot dies in exact position on forging machines, use Kalrez® Spectrum™ 7075 sealing solutions.