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65031X-X N Series 2-Ball Piston Pump

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

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 to18.1 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 coating 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
2-Ball ARO Piston Pumps

Pump Model

Lower 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

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)

2-Ball Piston Pump performance curve
2-Ball Piston Pump performance curve
65031X-X Piston Pump Dimensions

Dimensions

A in (mm)

B in (mm)

650311-X

28.093 (714)

9.875(251)

650312-X

51.437 (1306)

33.219 (846)

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