Husky 15120 Air-Operated Diaphragm Pumps


  • Overall improved efficiency
  • Highest fluid flow rate in its class
  • Expanded material offering to handle endless applications
  • Lube-free operation



The Husky 15120 air-operated diaphragm pump features a stall-free low pulsation air valve which provides a smooth and rapid changeover.

The one-piece centre section eliminates leaks and reduces maintenance on Husky pumps when compared to other diaphragm pumps.

Benefits of the Husky 15120 double diaphragm pumps

  • Overall improved efficiency (up to 40% more efficient)
  • The highest fluid flow rate in its class
  • Up to 5 times, longer diaphragm life compared to other air operated diaphragm pumps
  • Expanded material offering to handle endless applications
Maximum fluid flow
122 gpm (462 l/min)
Maximum Fluid Discharge Pressure
25 psi (8.6 bar, 0.86 MPa)
Maximum size pumpable solids
¼ in (6.3 mm)
Fluid displacement per cycle
0.66 gallons (2.5 litres)



  • 1-1/2 in (38.1 mm) ANSI centre and end-porting options available
  • High flow – 120 gpm (454 lpm) in a compact, portable size
  • Fluid pressure to 125 psi (8.6 bar, 0.86 MPa)
  • Lube-free operation
  • Available in polypropylene and PVDF



  • Antifreeze
  • Windshield Washer Fluid
  • Diesel Exhaust Fluid (DEF)
  • Detergents
  • Cutting Oil
  • Water
  • Water – Wastewater Treatment
  • Water – Wastewater Transfer
  • Water – Freshwater Treatment



Husky 15120 Air-Operated Diaphragm Pump
Maximum fluid working pressure
0.86 MPa, 8.6 bar
Air pressure operating range
0.14 to 0.86 MPa, 1.4 to 8.6 bar
Air inlet size
1/2 in. (npt(f)
Air exhaust size
1 in.
Fluid inlet and outlet size (ANSI/DIN flange)
38 mm
Maximum suction lift (reduced if balls don’t seat well due to damaged balls or seats, lightweight balls, or extreme speed of cycling)
Wet: 9.4 m, Dry: 4.9 m
Maximum size pumpable solids
6.3 mm
Minimum ambient air temperature for operation and storage. NOTE: Exposure to extremely low temperatures may result in damage to plastic parts.
0° C
Air Consumption
1.2 m³/min at 0.48 MPa, 4.8 bar, 227 lpm
Maximum Air Consumption
2.4 m³/min
Noise (dBa): Sound power measured per ISO-9614–2. Sound pressure was tested 3.28 ft (1 m) from equipment.
Sound Power
90.9 at 4.8 bar and 50 cpm, 102.1 at 7.0 bar and full flow
Sound Pressure
83.6 at 4.8 bar and 50 cpm, 95.7 at 7.0 bar and full flow
Fluid flow per cycle
1–piece bolt-through diaphragms
2.4 litres
2–piece bolt-through diaphragms
2.5 litres
Overmolded diaphragms
2.3 litres
Maximum free-flow delivery
1–piece bolt-through diaphragms
462 lpm
2–piece bolt-through diaphragms
454 lpm
Overmolded diaphragms
435 lpm
Maximum pump speed
1–piece bolt-through diaphragms
192 cycles per minute
2–piece bolt-through diaphragms
183 cycles per minute
Overmolded diaphragms
195 cycles per minute
25.9 kg
33.6 kg
Wetted Parts
Wetted parts include material(s) chosen for seat, ball, and diaphragm options, plus the pump’s material of construction: Polypropylene or PVDF
Non-wetted external parts
stainless steel, polypropylene

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