• Port Size: HDF1: 1” NPT or HDF25: 1” BSP (Tapered)
• Capacity: 0 to 70 gpm (265 lpm)
• Solids-Handling: Up to 1" (25.4 mm)
• Displacement/Stroke: .10 gallons (.38 liters)

• Port Size: • 2” NPT (Internal) • 2” BSP (Tapered) • 2” ANSI • 2” DIN Flange
• Capacity: 0 to 150 gpm (567 lpm)
• Solids-Handling: Up to 1.8" (46 mm)
• Heads Up To: 100 psi or 231 ft. of water (7 bar or 70 meters)
• Displacement/Stroke: .50 gallons (1.9 liters)
• Max Operating Pressure: 100 psi (7 bar)

The Heavy Duty Non-Metallic Flap Valve Air Operated Diaphragm Pumps from Sandpiper® are robust, yet lightweight. They are easy to maintain with flap valve chambers that can be removed for inspection and cleaning without removing the manifolds and the ESADS+Plus (Externally Serviceable Air Distribution System).

The flaps have positive pressure so that the pump can work in almost any position and handle solids laden fluids. The lightweight and durable design makes them ideal for mine and construction applications.

• Port Size: 2" NPT
• Capacity: 0 to 140 gpm (530 lpm)
• Air Distribution Valve: No-lube, no-stall design
• Solids-Handling: Up to 2" (50 mm)
• Displacement/Stroke: 0.43 gallons (1.6 liters)

• Port Size: 3" ANSI
• Capacity: 0 to 260 gpm (988 lpm)
• Air Distribution Valve: No-lube, no-stall design
• Solids-Handling: Up to nearly 3" (75 mm)
• Displacement/Stroke: .026 gallons (.098 liters)

• Port Size: 3" ANSI
• Capacity: 0 to 260 gpm (988 lpm)
• Air Distribution Valve: No-lube, no-stall design
• Solids-Handling: Up to nearly 3" (75 mm)
• Displacement/Stroke: .026 gallons (.098 liters)

A pump solution for a broad range of fluids containing solids and chemicals.

• Small Solids
• Packable Materials
• Large Solids
• Viscous Fluids
• Abrasive Fluids
• Harsh Chemicals