ROTARY BACKFLUSH

A ribbon type screenchanger also requires a specific screen
which costs double or even triple that of the rotary backflush screens. The
savings on screen costs with a rotary backflush system are substantial
especially when using a high percentage of regrind or recycled
material.

Leakage is a problem with most screenchangers. In use they are usually
torqued up to prevent leaks and then backed off when a screen change is
needed. Rotary backflush screenchangers have a huge sealing surface and leakage
is not a common problem. The body blocks and the faces of the disc are
superbly machined and polished to mirror like finishes. Using very
precise torquing techniques, manufacturers squeeze the disc to
unbelievable values.