EGC develops dures brand of polymer composites for pumps

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EGC Critical Components (EGC), a leading manufacturer of high-performance thermoplastic performance-critical components, has announced its dures brand of materials, a new family of proprietary thermoplastic polymer composites developed specifically for the manufacture of bushings, bearings, and wear rings in pumps handling a wide range of liquids, including those that contain solid matter.

In a press release, EGC said the new material helps to address the maintenance, upgrade, and repair needs of pumps operating in a wide range of performance demanding environments including refineries, chemical plants and pipelines. In the refinery environment, EGC estimates that approximately sixty per cent of pumps currently in operation can benefit from this material.

The dures family of polymer solutions for pump applications includes four products with unique performance characteristics: dures150, dures250, duresA451, and duresXPC2. dures150 and 250 are the most recent additions to this family of composite formulations. They were developed to meet the need for outstanding chemical, thermal shock and impact and abrasive resistance, with a temperature range of 150°F and 250°F. dures polymers provide greater wear performance than many other materials such as rubber or bronze, offer superior abrasive resistance, dry run capability and vibration dampening with negligible hydrolysis or swell.

DuresA451 produced from chop carbon fibre and reinforced compression moulded PEEK is used in the manufacture of bushings, bearings and wear rings with excellent chemical resistance, non galling and non seizing properties. In comparison, duresXPC2, formulated from continuous carbon fibre with PEEK base polymer, is recommended and approved for operating temperatures up to 550°F making it most appropriate for use in boiler feed and process pumps. duresA451 and XPC2 have been successfully used by industry for decades, the statement said.

Michael Boylan, general manager for EGC said, “Pump operators using dures materials can now set much tighter equipment clearances, enhancing efficiency and savings in life cycle costs. Also, because we have a laboratory and testing facility on the same campus as our manufacturing center, we have full control over the design, specification, quality and performance of materials. For applications where the slightest variance can produce unacceptable results, this ensures the highest standards are always met.” (GK)

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