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Graco’s diaphragm pumps are designed for industrial and chemical transfer applications. Our chemical and industrial diaphragm pumps come in pneumatic and electric options, with many flow rates and sizes. Both metal and plastic housings can easily handle corrosive and abrasive fluids. All of our industrial diaphragm pumps are thoroughly tested before they leave our factories.

Designed with fewer parts than competitive pumps, Graco’s air-operated double diaphragm pumps feature our stall-free, low-pulsation air valve, which is externally accessible—ensuring rapid changeovers and minimum downtimes.


  • Rugged construction. Resists corrosion for reliable performance and long life.
  • Designed to last. Heavy-duty design offers long life, increased productivity and lower overall cost of ownership.
  • Flow rates and sizes. Up to 300 gpm (1135 lpm) / port sizes ranging from ¼” to 3” in NPT, BSP, and flange options.
  • Easy maintenance. The Husky has fewer parts than industry peers, the complete air valve is externally accessible so it can be serviced fast and easy without removing the pump.
  • Modular air valve. Stall-free, low pulsation air valve provides smooth and rapid changeover for increased efficiency and minimizes downtime.