FELUWA MULTISAFE® double hose-diaphragm pumps
for abrasive, aggressive and toxic media

Heterogeneous Mixtures

Pumping of heterogeneous mixtures and fluids containing coarse contaminations
as well as high densities calls for custom-tailored solutions to ensure permanently trouble-free operation.

Homogeneous mixtures are characterised by a relatively uniform distribution of solids and liquid. Heterogeneous mixtures, on the other hand, consist of water and very different solid sizes.

Scientific paper: Webpaper

Heterogeneous fluid (l.) homogeneous fluid (r.)
Example of a heterogeneous fluid

DownFlow Technology (DFT)

In order to avoid disadvantageous sedimentation conditions, double hose-diaphragm pumps literally turn the traditional pumping principle upside down. When handling heterogeneous mixtures, the flow is therefore not directed from the bottom to the top, but from the top to the bottom. The cylindrical shape of the diaphragm with maximum linear flow lines panders to the flow behaviour and avoids the settling of solids.