Don’t let degradation and air locking plague your pump

Our hMAX pump, with its large internal clearances and superior hydraulic design, maintains the integrity of the product by delicately handling solids in suspension. The hMAX reduces carbon attrition and shear stress making it an ideal choice for the carbon transfer process.

In applications such as flotation, concentrate slurries will have a significant amount of entrained air known as froth. When pumping froth slurry, special considerations must be taken since it will no longer perform as normal slurry at the same pump speed. The difference is due to the air which will expand in the low-pressure zone at the eye of the impeller and inhibit the flow going through the pump. Traditionally, pumps are oversized to account for the volume of air at the eye of the impeller to still generate the required flow rate.

Oversizing, however, is not the only solution! With a recessed impeller design, the hMAX allows for the clear passage of air entrained slurries without influencing the duty flow and head. Through constant recirculation, the open vortex impeller design allows for froth advancement without air locking. In fact, the hMAX can handle slurries containing up to 30% entrained air.

And wear life? The hMAX’s heavy-duty concentric casing design reduces radial loads, which greatly extends the life of the pump, the bearings and the mechanical seals.

Our hMAX pump is the longest-wearing and most efficient pump in its class. It features a heavy-duty concentric casing design that reduces radial loads and extends bearing life. The recessed impeller and concentric casing provide large internal clearances that allow for the clear passage of large solids and reliable operation at low flows.