Conical tubes (FITO and FOTI)

This design can be made both for filtration from inside to outside (FITO) and for filtration from outside to inside (FOTI).

The angle of the conical tube is by standard available from 0.6° up to 7°. Other angles, specifications and qualities are available on request.

In the FITO version of the conical filter tube, the opening of the smallest diameter is sealed with the largest diameter acting as the supply of the liquid to be filtered.

Conical filter tubes have as greatest advantage that the pressure over the full length of the conical filter tube is equal while filtering a liquid.

In the FOTI version, the operation is exactly the opposite from the FITO version. The smooth work surface is now on the outside of the conical filter tube. In this design as well, the opening of the smallest diameter is sealed. However, the largest diameter now functions as the exit for the filtered liquid.

The FITO version is most requested by our customers.

The length may vary from about 130 mm to about 1500 mm.

For each version, a separate tool must be created.