KREBS gravelMAX™ Pumps • Less down time • Lower power consumption • Patented externally adjustable suction-side wear ring

KREBS® gravelMAX™ Pumps millMAX™ Solves This Kind of Problem Markets & Applications Dredging Benefits The gravelMAX™ Pump has a unique patented design developed for severe abrasive slurries. The gravelMAX™ Pump features a patented on-line wear clearance adjustment, which minimizes the cost-per-ton pumped compared to conventional hard metal and rubber lined slurry pumps through: Aggregates (Sand Plants, Cyclone Feed, Tailings) Dredging Coal Froth (where air disbursement is a priority) Heavy-duty abrasive slurries Any application requiring the passage of large particles (hard hats not recommended!)...

millMAX™ PUMPS Krebs millMAX™ Pumps treat the cause of pump wear and loss of efficiency, whereas competitive pumps treat the symptoms through materials or predictive uneven wear rates. In most established millMAX™ installations, wear life of parts has been even and in the majority, overall wear life has generally improved by 50% to 100%. This increase in wear life is achieved together with a reduction in power, generally in the 10% to 20% or greater range. The reduction in power can then be taken as a cost savings, or through additional pumping capacity with the same installed motor. With the...

gravelMAX™ Technical WATER FLUSH SEAL Gland Water Required Slurry pumps are Krebs gravelMAX™ design and include the following: CASING - designed for minimum slurry turbulence and even wear. Includes integral wear ring, carrier, and adjustment screws for on-line adjustment and elimination of suction side recirculation. WEAR RING - adjustable wear ring assembly to permit closing of suction side impeller clearance during operation. This reduces slurry recirculation and lowers pressure at the suction area, thereby maintaining flow and reducing wear. IMPELLER - designed for high slurry efficiency...

High Radial Vanes • Clears large solids. • Prevents solids from being crushed. • Reduces casing slurry pressure at the eye of the impeller. • Reduced power consumption. External Wear Adjustment Screw • Four screws for on-line wear clearance adjustment. • Adjusted while the pump is operating. • Adjusted six to eight times during the life of the pump. Adjustable Wear Ring • Allows a higher percentage of solids pumped & maintained throughout the life of pump. • Adjusted during operation. • Reduces suction side recirculation. • Maintains hydraulic performance. Larger Opening • Allows greater maximum...

gravelMAX™ ENGINEERING DIMENSIONS Standard gravelMAX™ Discharge Positions Top 45 degree Top horizontal Bottom 45 degree Bottom horizontal *NOTE: CONSULT FACTORY FOR OTHER DISCHARGE POSITIONS. Heart of the Design The patented on-line suction side wear clearance adjustment permits the initial clearances to be maintained throughout the life of the pump. This extends the life of the impeller and suction wear faces to near, or equal that of, the casing for a one time maintenance rebuild. Tight clearances at the wear ring prevents suction-side recirculation. Hybrid Suction Sealing System Wide clearances...

- BARE SHAFT PUMP MINIMUM REQUIRED Copyright KREBS gravelMAX™ September, 2006 gravelMAX™ Pumps and gMAX® Sand Stacking Cyclones

Metal Slurry Pumps The primary applications for the Krebs Metal Slurry Pumps are mill discharge, crusher slurry, sand and aggregate or any coarse solids or other severe, abrasive slurries especially in the copper, gold, iron ore, lead-zinc, coal, or phosphate plants. The most dramatic savings will be in these applications, though savings will also be realized on fine solids, like find sand recovery or kaolin. The key advantage of the Krebs Metal Slurry Pumps is the 10% to 30% lower power, long even wear life and less pump downtime, which results in lower cost-perton pumped, along with better...