A new family of proprietary thermoplastic polymer composites developed for the manufacture of bushings, bearings and wear rings in pumps that handle a wide range of liquids, including those that contain solid matter has been launched by EGC Critical Components, Houston. They boast greater wear performance than many of the other mateirals such as rubber or bronze, with superior abrasive resistance, dry run capability and vibration dampening with negligible hydrolysis or swell.
This family is comprised of four products with unique performance characteristics: dures 150, dures 250, dures A451 and dures XPC2. The first two and newest additions 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.
Meanwhile, dures A451, produced from chop carbon fiber and reinforced compression molded PEEK, is used in the manufacture of bushings, bearings and wear rings with excellent chemical resistance, non-galling and non-seizing properties. But it’s not suited for abrasive applications or operating temperatures above 275˚F. In contrast, dures XPC2, formulated from continuous carbon fiber with PEEK base polymer, is approved for operating temperature up to 550˚F making it most suited for use in boiler feed and process pumps.