Single-stage centrifugal pumps specially constructed as per DIN-24256 for chemical products with closed impeller.
Depending on the liquid to be pumped, there are designs which allow for the refrigeration or heating of the pump casing and seal chamber.
The pumps can be equipped with any make and model of mechanical seal or with sealing by packing.
Operation: The pressure of the fluid pushes the ball, which slides by some inner guides, staying in a lateral cavity of the body.
When the impulse stops, the ball lowers and is positioned in the hole of the valve inlet. The valve ensures a total flow of clean fluids or solids. Eliminates any risk of blockage by being the self-cleaning shutter (ball).