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

Sandpiper’s AODD Pump, specifically the Heavy-Duty Ball Valve Pump (HDB) are the mainstay in challenging customer applications, moving thin-highly viscous and small, solids-laden fluids. The HDB2 Metallic AODD Pump provides excellent durability in demanding applications and is designed to withstand the most rugged and harsh ball valve environments. It was designed with thick walls constructed of Sand Casted Aluminum, Cast Iron, Stainless Steel or Alloy C with elastomer, TPE (thermal plastic elastomers) and PTFE options in diaphragms and check valves. The pump is also available in a top- and down-porting options which make installations easy and optimize performance on the pumped fluid and solve critical problem, such as solids and abrasives settling out of the liquid chamber into the ball check area. The pump is designed to outlast standard pumps.

These pumps are enhanced with extended wear packages and are the optimal solution for abrasive-slurry applications. Features include;

• Top-ported option: 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 option: For fluids containing settling solids. The discharge port is positioned below the center of the pump so solids settle in the elbow and 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.