Husky 15120 Air-Operated Diaphragm Pumps

1.5 inch Positive Displacement Double Diaphragm Pump

The Husky 15120 has a 1.5 inch (38.1 mm) connection and is available in polypropylene and PVDF.

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 center 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)
  • 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
Maximum Fluid Discharge Pressure
25 psi (8.6 bar, 0.86 MPa)
Maximum size pumpable solids
Fluid displacement per cycle

Husky 15120 Performance


Husky 15120 Air-Operated Diaphragm Pump

Maximum fluid working pressure
125 psi
Air pressure operating range
20 to 125 psi
Air inlet size
1/2 in. (npt(f)
Air exhaust size
1 in.
Fluid inlet and outlet size (ANSI/DIN flange)
1.5 in
Maximum suction lift (reduced if balls don’t seat well due to damaged balls or seats, lightweight balls, or extreme speed of cycling)
Wet: 31 ft, Dry: 16 ft
Maximum size pumpable solids
1/4 in.
Minimum ambient air temperature for operation and storage. NOTE: Exposure to extreme low temperatures may result in damage to plastic parts.
32° F
Air Consumption
43 scfm at 70 psi, 60 gpm
Maximum Air Consumption
85 scfm

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 70 psi and 50 cpm, 102.1 at 100 psi and full flow
Sound Pressure
83.6 at 70 psi and 50 cpm, 95.7 at 100 psi and full flow

Fluid flow per cycle

1–piece bolt-through diaphragms
0.63 gallons
2–piece bolt-through diaphragms
0.66 gallons
Overmolded diaphragms
0.59 gallons

Maximum free-flow delivery

1–piece bolt-through diaphragms
122 gpm
2–piece bolt-through diaphragms
120 gpm
Overmolded diaphragms
115 gpm

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


57 lb
74 lb

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
  • 1-1/2 in (38.1 mm) ANSI center 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