HDB2 Sandpiper Metallic Air Operated Double Diaphragm Heavy Duty Ball Metallic Pump

HDB Metallic air operated double diaphragm pumps are ideal for thin to highly viscous and small solids-laden fluids, while providing excellent suction lift capability and exclusive variable porting options (side, top, bottom and dual). HDB pumps are thick wall 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. HDB pumps are enhanced with an extended wear package.


Port Size
2″ NPT
0 to 135 gpm (511 lpm)
Air Distribution Valve
No-lube, no-stall design
Up to .375″ (9 mm)
Heads Up To
125 psi or 289 ft. of water (8.6 bar or 88 meters)
.43 gallons (1.63 liters)
Max Operating Pressure
125 psi (8.6 bar)
Shipping Weight
Top Ported Aluminum: 88 lbs. (40 kg)
Top Ported Cast Iron: 166 lbs. (75 kg)
Top Ported Stainless Steel: 179 lbs. (81 kg)
Bottom Ported Aluminum: 95 lbs. (43 kg)
Bottom Ported Cast Iron: 172 lbs. (78 kg)
Bottom Ported Stainless Steel: 186 lbs. (84 kg)

Click here for HDB Metallic Data Sheet.