61204X-X Series Pumps

65031X-X 'N' Series 2-Ball Pumps

2:1 Ratio
3" Air Motor
4.2 GPM (16.1 LPM) Max Flow
0 - 600 PSI (0 - 41.4 bar) Fluid Pressure

2:1

3"
 

Available Models

Pump Model Lwer Pump Material Container Suitability Plunger Material Upper Packings Lower Packings Lower Pump Model Pump Service Kit
650311.0 Stainless Steel Stub Stainess Steel PTFE PTFE 1875C11SS22 K18755C11SS20
650311-4 Stainless Steel Stub Stainess Steel UHMW-PE UHMW-PE 1875C11FF22 K18755C11FF20
650311-5 Stainless Steel Stub Ceramic Coated Stainless Steel PTFE PTFE 1875C11SS29 K18755C11FF20
650311-6 Stainless Steel Stub Ceramic Coated Stainless Steel UHMW-PE UHMW-PE 1875C11FF29 K18755C11FF20
650311-7 Stainless Steel Stub Ceramic Coated Stainless Steel Viton UHMW-PE 1875C11VF29 K18755C11VF20
650311-8 Stainless Steel Stub Stainess Steel Viton PTFE 1875C11VF22 K18755C11VF20
650311-9 Stainless Steel Stub Stainess Steel Viton UHMW-PE 1875C11VF2E K18755C11VF20
650312.0 Stainless Steel 55 Gallon Stainess Steel UHMW-PE UHMW-PE 1875C51SS22 K18755C11SS20
650312-4 Stainless Steel 55 Gallon Stainess Steel PTFE PTFE  1875C51FF22 K18755C11FF20

Simply Versatile

2-ball pumps are among the most versatile in the ARO® line. They are capable of handling applications from simple transfer to the extrusion of low- to medium- viscosity materials up to 100,000 centipoise (cPs) with fluid delivery up to 18.1 gpm (68.6 L/min).

Applications advantages of 2-balls:

Spray: 2-ball pumps deliver the constant flow rate and pressure needed for consistent and efficient coatings applications
Transfer & Supply: Depending on the model, some 2-ball pumps can achieve flow rates up to 18.1 gpm, providing dependable results
Extrusion: 2-ball pumps generate pressure to handle extrusion of low-to medium-viscosity
Lubrication: ARO® 2-balls pumps provide the flow and pressure required for moving light oils and grease lubricants
High Pressure Cleaning: ARO® Wash Pump Packages are portable and offer the the right option for industrial cleaning applications

Materials advantages of 2-balls:

  • Sheer sensitive materials: ARO® 2-ball pumps minimize friction points to prevent fluid shear, when compared to other similar pumping technologies
  • Abrasive and high solid materials: ARO 2-ball pump minimize friction points and allow smooth passages to maintain fluid consistency
  • Optional ceramic coating provides an even stronger defense against highly abrasive fluids like paint and glass-filled sealer

Specifications

Ratio 2:1
Stroke 3”
Material Inlet 1 1/4" NPS
Material Outlet 3/4” NPT(F)
Air Inlet (female) 1/4” NPT(F)
Air Inlet Pressure Range psi (bar) 0 – 150 (0 – 10.3)
Fluid Pressure Range psi (bar) 0 – 343 (0 – 23.6)
Max Cycles/Minute 120.0
Displacement/Cycle cu in (cm3) 8.2 (134.3)
Cycles/gal (L) 28 (7.4)
Flow @ 60 Cycles gpm (L/min) 80.0
Noise Level @ 60 psi dBA 9.0 (34.1)
Weight* lb (kg) 650311X 13 (5.9)
650312X 14 (6.4) 
65031X-X "N" Series 2-Ball Pumps
650311 & 6504112 Performance Curve
65031X-X "N" Series 2-Ball Pumps
650313 & 6504114 Performance Curve
65031X-X "N" Series 2-Ball Pumps

Dimensions

Dimensions A in (mm) B in (mm)
650311-X 28.093 (714) 9.875(251)
650312-X 51.437 (1306) 33.219 (846)