Diaphragm Pumps

The Graco Husky 3300e electric-operated double diaphragm (EODD) pump delivers up to 832 L/min (220 gpm) while cutting energy use by as much as 80% versus comparable AODD pumps, with low-pulsation flow, VFD metering, run-dry capability and optional ATEX explosion-proof motors.

A compact 0.25-inch plastic air-operated double diaphragm (AODD) pump (Husky 205, NPT/BSP ports) delivering up to 19 L/min (1.14 m³/h) at 0.7 MPa, with durable PTFE diaphragms and an optional external solenoid valve for remote-control operation.

A lightweight, portable 0.375-inch plastic air-operated double diaphragm (AODD) pump available in acetal or polypropylene, delivering up to 26.5 L/min (1.56 m³/h) and able to run on air pressure as low as 20 psi (1.4 bar) with quiet 75 dBA operation.

A multi-port 0.5-inch plastic air-operated double diaphragm (AODD) pump with 1/2-inch center and 3/4-inch side fluid ports, delivering up to 57 L/min (3.42 m³/h) at 0.7 MPa, featuring a reliable pilot-operated air valve and optional solenoid for remote control.

A rugged 0.75-inch air-operated double diaphragm (AODD) pump with a Husky 1050-style air valve, delivering up to 61 L/min (3.66 m³/h) at 0.7 MPa with strong self-priming and fast start-up, plus an optional external solenoid valve for remote-control operation.

A compact 1-inch metal air-operated double diaphragm (AODD) pump (Husky 1050) delivering up to 189 L/min (50 gpm) at fluid pressures to 125 psi (8.6 bar), with a corrosion-resistant coated center section and reliable air-shifting valve for demanding industrial transfer.

A 1.5-inch (1-1/2 in. NPT) air-operated double diaphragm pump in aluminum or stainless steel, delivering up to 378.5 L/min (22.74 m³/h) at fluid pressures to 120 psi (8.4 bar), with an epoxy coating for harsh duty.

A 2-inch (51 mm) air-operated double diaphragm pump with larger fluid passages for higher throughput up to 568 L/min (34.08 m³/h) at fluid pressures to 120 psi (8.4 bar), offered in polypropylene and PVDF with an epoxy coating for demanding service.

A flange-connected 3-inch air-operated double diaphragm pump that delivers up to 275 gpm (1041 L/min, 62.46 m³/h) and handles fluids to 25,000 cPs, with leak-free flanged porting and an epoxy coating for the most demanding metal-pump duty.