Comoso Controlled Motion Solutions

While modular back-ups require an increase in groove width to
be incorporated into the sealing system, because they are integrated
with the seal positively-actuated back-ups do not change the required
axial groove width. For many profiles, these back-ups can provide the
ultimate extrusion resistance while retaining the seal’s original groove
dimensions. While the most common material used to manufacture
positively-actuated back-ups is nylon, it is not uncommon to see
applications that require materials such as UltraCOMP™, PTFE or
polyacetal.

Due to the nature of this product line and the design relationship
between the back-up and the seal, parts are sold only as part of an
assembly that includes the seal design best suited to the application.

Positively-actuated back-ups can be incorporated into profiles such as the BPP and BD. Tooling may be required.