Sandpiper HDB2 & HDB50 Metallic AODD Pump, Heavy Duty Ball Valve Pump 

Sandpiper’s AODD Pump, specifically the Heavy Duty Ball Valve Pump are the ideal choice for application that handles abrasive and harsh fluids. The HDB3 & HDB4 Evolution are the best in class for moving thin-highly viscous and small, solids-laden fluids. These pumps are have the AODD Pump industry’s highest maximum flow, with up to 300 gpm. The provide excellent suction lift capabilities and are designed to withstand the most rugged and harsh ball valve pumping applications.

The heavy-duty ball valve pumps are ATEX-certified. The HDB3 and HDB4 are available in top- and down-ported options for optimized performance. These porting configurations solve critical problems, such as solids and abrasives settling out of the liquid chamber into the ball check area. These pumps are designed to outlast standard pumps.

These pumps are enhanced with extended-wear purchases and are the optimal solution for abrasive-slurry applications;

• Top-ported; For fluids containing floating solids, suspended solids or entrained gasses. The discharge port is positioned above the center of the pump for easier evacuation and less build-up of solid material or gasses.
• Down-ported: For fluids containing settling solids. The discharge port is positioned below the center of the pump so solids settle in the elbow are discharged. This helps reduce wear on the diaphragms and associated components.
• Heavy-duty plunger bushings and actuator pins: Designed to withstand severe applications.
• Diaphragm wear pads: Installed between the diaphragm and outer diaphragm plate, providing a secondary wear surface that extends the life of the diaphragm.
• Thicker, more robust wetted castings: Provide extended wear resistance.
• Heavy-duty weighted check valve balls: Are 30% – 60% heavier than solid rubber check balls, allowing for more consistent chamber filling.