WR® 525 is a thermoplastic  composite consisting of carbon fiber  in a PEEK matrix. Because of its  unique thermal expansion properties,  WR® 525 is ideal for use as impeller  wear rings, bushings and case wear  rings. 

WR® 525 allows the pump user to  increase pump efficiency by running  tighter wear ring clearances, while  decreasing potential pump damage  when pumps are cavitated or experience down-line bearing failures.  WR® 525 is API 610 approved for  (stationary/stationary and rotating)  wear applications.

Features and Benefits

• Steel replacement 

• Extremely lightweight 

• Low coefficient of thermal expansion 

• Excellent chemical resistance 

• Nongalling/nonseizing properties 

• Low coefficient of friction 

• Impact resistance 

• Thermal shock resistance

Availability

• For a length of 162 inches  - 164 inches, the maximum  outside diameter is  60 inches. 

• For a length of 414 inches  - 416 inches, the maximum  outside diameter is  24 inches. 

• Outside Diameter Capability:  GT will currently build to an  outside diameter of 60  inches, and can address  larger diameters on demand. 

• Wall Thickness: Wall  thickness must be greater  than 0.0055 inches. ID/  radial wall thickness ratio  is recommended as 10:1.  There is no maximum wall  thickness limitation.