AF0805 Series Pumps

AF0805 Series 4-Ball Piston Pumps & Packages

5:1 Ratio
8" Air Motor
32.8 GPM (124 LPM) Max Flow
Max Fluid: 702



Available Models

Pump Model** Lower Pump Model Material Plunger Material Upper Packings Lower Packings Lower Pump Model Pump Service Kit
AF0805M11FF48 300 Series/CF8M Stainless Steel 17-4 Stainless Steel, Ceramic Coated UHMW-PE UHMW-PE 67201-C4G 637318-C4G
AF0805M11GF48 300 Series/CF8M Stainless Steel 17-4 Stainless Steel, Ceramic Coated UHMW-PE/Glass Filled PTFE (Staggered) UHMW-PE 67201-P4G 637318-P4G

**Add “-1” to Model No. for Ball Valve Regulator

Simply Versatile

4-ball Piston Pumps & Packages are designed to transfer high volumes of low- and medium-viscosity fluids up to 12,500 cPs with fluid delivery up to 32.8 gpm (124.0 L/min), depending on the application.

Applications advantages of 4-balls:

Transfer & Supply: 4-ball pumps are designed to move high volumes of fluids in order to minimize time spent filling or emptying large containers. The high flow rate is a result of double-acting pumping (draws material on the upstroke and downstroke) and is ideal for the large scale transfer of paints, chemicals, varnishes, enamels, lacquers and other low-to-medium viscosity fluids.

Another common application: circulating fluid from the original container to the point of use, and then back.

Materials advantages of 4-balls:

  • Corrosive materials: ARO® 4-ball lower ends are constructed with stainless steel to maximize fluid compatibility with water based materials.
  • Abrasive materials: A ceramic coating on the plunger rod and cylinder tube come standard on ARO® 4-ball pumps, protecting from highly abrasive materials and extending the service life of these parts up to 2x.


Ratio 5:1
Stroke 6” (15.24 cm)
Material Inlet 1-1/2” NPT(F)
2” NPT(M)
Material Outlet 1” NPT(F)
Air Inlet (female) 1/2” NPT(F)
Air Inlet Pressure Range psi (bar) 30 - 120 (2.1 - 8.3)
Fluid Pressure Range psi (bar) 150 - 702 (10.3 - 48.4)
Max Cycles/Minute 70.0
Displacement/Cycle cu in (cm3) 108.1 (1771.4)
Cycles/gal (L) 2.1 (0.5)
Flow @ 60 Cycles gpm (L/min) 32.8 (124.0)
Noise Level @ 60 psi dBA 86.8
Weight* lb (kg) 96 (43.5)
Container Suitability Remote Mounting
AF0805 Fluid Curves


A 1 in (mm)  48.73 (1237.72)
B in (mm)  25.67 (652.12)
C in (mm)  19.54 (496.32)

For models without ball valve regulator subtract 2.08 in (52.83 mm)