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NM2318B-13-X43 N Series

  • 18:1 Ratio
  • 3" Air Motor
  • Max Flow: 0.61 GPM (2.3 LPM)
  • Max Fluid Pressure: 2,700 psi

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

Pump Model**

Lower Pump Material

Plunger Material

Upper Packings

Lower Packings

Pump Service Kit

NM2318B-13-C43

304 Stainless Steel

17-4 Stainless Steel

UHMW-PE

UHMW-PE

637394-X43

NM2318B-13-L43

304 Stainless Steel

17-4 Stainless Steel

PTFE

PTFE

637394-X43

Ratio

18:1

Stroke

3”

Material Inlet

1/2” NPT(F)

Material Outlet

1/4” 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 – 2

Max Cycles/Minute

120

Displacement/Cycle cu in (cm3)

2.3 (37.6)

Cycles/gal (L)

98.3 (26.5)

Flow @ 60 Cycles gpm (L/min)

0.6 (2.3)

Noise Level @ 60 psi dBA

85

Weight* lb (kg)

12.6 (5.7)

A* in (mm)

23.187 (563.6)

B in (mm)

13.812 (334.2)

C in (mm)

6.937 (175.4)