Applied for filtration from inside to outside.
The filter surface is on the inside.
The profiles run radially on the inside of the filter tube. The support bars are located axially on the outside of the filter tube.
The filter tube is made of a normal filter tube (FOTI) that is cut open in the longitudinal direction between two support bars. Then we flatten the filter and roll it in the opposite direction, up to the requested diameter. As a consequence, the support bars lie outside. The last support bar on both sides of the filter are welded together, creating a weld seam.
This design can be used for diameter as from 150 mm and larger.
