Defoaming Pumps are capable of pumping foaming slurry, a special internal construction enables transporting slurries containing air or foam.
First the liquid is de-aired and defoamed in the so-called defoaming compartment.
The liquid flows through the orifice into the intake part of the pump, the dissolved gas in the liquid is separated from the liquid by decompression, and the generated gas-liquid mixture is fed to the inducer.
The liquid in the gas-liquid mixture is pushed against the periphery and the gas accumulates in the central area of the casing.
The gas is then drawn out by the vacuum pump through the impeller. Any remaining liquid in the gas drawn out by the vacuum pump is separated by the impeller, and returned to the intake side of the inducer.