Air Operated Diaphragm Pumps

G57 Dual Two-Pump System

Model No.: G57 Dual

  • Flows up to 10 GPM (38 L/min)
  • Chemical resistant Polyproplene housings with Viton® and Santoprene® elastomers
  • Easy installation with 1/2″ (12.7 mm) Dual manifold
  • Duplex diaphragm design
  • Patented shuttle valves, eliminates stalling
  • Compact size

Flojet’s ultra-efficient, “stand-up-to-anything” G57 pump has become an industry leader. And now Flojet has raised the bar on pump performance even higher with the G57 Two-Pump system. The Two-Pump system delivers flows of up to 10 GPM. The G57 Two pump system is ideal for a host of heavy-duty industrial applications. These air-operated pumps are fitted with Santoprene or Viton elastomers to handle even the harshest cleaners and solvents. A patented ceramic shuttle valve ensures a lifetime of stall-free operation. Flojet’s commitment to sophisticated engineering and advanced design means you can depend on these pumps to consistently and reliably deliver the highest performance with minimal servicing, saving you time and money.


Flow Rate Open Flow – Up to 10 (gpm) Open Flow – Up to 38 (lpm)
Air Supply Pressure    20 – 100 (psi) 1.4 – 6.9 (bar)
Temperature Range 120 (°F) 48.9 (°C)
Self Priming Up to 15ft(4.5m)
Port(s) Gas Inlet & Outlet 1.4″(6.3mm); Product Inlet 1/2″(12.7mm); Product Outlet 1/2″(12.7mm);