Canned motor pumps are widely used in various processing industries to transport hazardous fluids. Vespel® CR-6100 parts have been demonstrated to survive run-dry conditions, with low wear rates , extending mean time between repairs of the retrofitted pump
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.
Vespel® SCP-5050 sweep-out fingers and stacker bar inserts for glass handling help increase plant reliability and efficiency and reduce operating costs at Veda-Pack glass manufacturing sites
Hub bushings designed using DuPont™ Vespel® and Minlon® keep copiers running smoothly.
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™ 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.
Retrofitting the pumps with DuPont™ Vespel® CR-6100 parts for line shaft bearings and stationary wear rings. To demonstrate that Vespel® CR-6100 could survive these conditions, site personnel installed a retrofitted pump and performed a field test.
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.
Kalrez® PV8070 perfluoroelastomer washers and gaskets in reactors for the Siemens polycrystalline silicon process provide superior sealing capability.
The operator of a pipeline in the Southwestern U.S. was searching for a case ring material for pumps that would enable improved operating efficiency, increase equipment reliability and avoid the seizing or galling problems encountered with metal components. The metal components were replaced with Vespel® CR-6100 parts, and the results were impressive.
The operator installed Vespel® CR-6100 parts as stationary wear components in boiler pumps. Clearance is about half that of the original design specifications of 0.016 in. (0.406 mm) for metal parts.
Vespel® thrust washers have been selected to replace larger and heavier metal thrust needle bearings positioned between the clutch casing and aluminum transmission housing.
Vespel® SCP-5050 take-out inserts for hot glass handling increase plant reliability & efficiency versus carbon graphite at Vitro glass bottle manufacturer