Back Up Ring, Brt, Washer, Nbr Back Up Rings, Ptfe Back Up Rings, Teflon Back Up Rings
Product Descriptions
A back up ring (brt) is a ring make up of extrusion resistant material with high durometer nitrile or teflon (ptfe). It is design to fit between orings and an extrusion gap. To prevent extrusion of the oring leading to failure.
