NM2328A-11-X11 Series Pumps

NM2328A-11-X11 'N' Series 2-Ball Piston Pump

28:1 Ratio
3" Air Motor
0.38 GPM (1.4 LPM) Max Flow
Max Fluid: 4,200 psi

28:1

3"
N
Series
 

Available Models

Pump Model** Lower Pump Material Plunger Material Upper Packings Lower Packings Lower Pump Model Pump Service Kit
NM2328A-11-311 440 Stainless Steel 440 Stainless Steel PTFE PTFE .25” NPT(M) 637006-3
NM2328A-11-G11 440 Stainless Steel 440 Stainless Steel UHMW-PE UHMW-PE 1.25” NPT(M) 637006-2
NM2328A-11-S11 440 Stainless Steel 440 Stainless Steel UHMW-PE UHMW-PE 1.25” NPT(M) 637006-3

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

 

 

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 28:1
Stroke 3”
Material Inlet 1/2” NPT(F)
Material Outlet 1/4” NPT(M)
Air Inlet (female) 1/4” NPT(F)
Air Inlet Pressure Range psi (bar) 0 – 150 (0 – 10.3)
Fluid Pressure Range psi (bar) 0 – 4,200 (0 – 289.7)
Max Cycles/Minute 125.0
Displacement/Cycle cu in (cm3) 1.4 (22.9)
Cycles/gal (L) 157.5 (43.5)
Flow @ 60 Cycles gpm (L/min) 0.38 (1.4)
Noise Level @ 60 psi dBA 85 @100 psi
Weight* lb (kg) 13 (5.9)
61204X-X Series Pumps
NM2328A-11-X11-dim

Dimensions

A* in (mm) 21.75 (552.1)
B in (mm) 13.03 (331)
C in (mm) 6.25 (158.6)

Cart Mount
5 Gallon

NP328C01-1_PistonPumpPackage_p001_l

Pail Ram
5 Gallon

NP328D01-1_PistonPumpGrease_p001_l

See More Package Details in the 2-Ball Catalog

Model No.  Air Inlet Pressure Range psi (bar) Fluid Pressure Range psi (bar) Flow @ 60 Cycles per Minute gpm (L/min) Displacement per Cycle cu in (mL) Lower Pump Material Plunger Material Packing Material Air Motor Air Motor Repair Kit Lower Pump End Series Lower Pump Repair Kit

NP328C01-2

0 - 150

(0 - 10.3)

0 - 4,200

(0 - 289.7)

0.38

(1.4)

1.4

(24.0)

440 Stainless Steel

440 Stainless Steel

UHMW-PE/

Glass-filled

PTFE (staggered)

66914

637316

66066-3

637006-3

NP328C02-2

0 - 150

(0 - 10.3)

0 - 4,200

(0 - 289.7)

0.38

(1.4)

1.4

(24.0)

440 Stainless Steel

440 Stainless Steel

UHMW-PE/

Glass-filled

PTFE (staggered)

66914

637316

66066-3

637006-3

NP328D01-1

0 - 150

(0 - 10.3)

0 - 4,200

(0 - 289.7)

0.38

(1.4)

1.4

(24.0)

Hardened Stainless Steel

Hardened Stainless Steel

UHMW-PE/Leather (staggered)

66914

637316

66066-2

637006-2

NP328D01-2

0 - 150

(0 - 10.3)

0 - 4,200

(0 - 289.7)

0.38

(1.4)

1.4

(24.0)

Hardened Stainless Steel

Hardened Stainless Steel

UHMW-PE/

Glass-filled

PTFE (staggered)

66914

637316

66066-3

637006-3

NP328D01-3

0 - 150

(0 - 10.3)

0 - 4,200

(0 - 289.7)

0.38

(1.4)

1.4

(24.0)

Hardened Stainless Steel

Hardened Stainless Steel

UHMW-PE/Leather

(staggered)

66914

637316

66066-2

637006-2

NP328D01-4

0 - 150

(0 - 10.3)

0 - 4,200

(0 - 289.7)

0.38

(1.4)

1.4

(24.0)

Hardened Stainless Steel

Hardened Stainless Steel

UHMW-PE/

Glass-filled

PTFE (staggered)

66914

637316

66066-3

637006-3

NP328D01-6

0 - 150

(0 - 10.3)

0 - 4,200

(0 - 289.7)

0.38

(1.4)

1.4

(24.0)

Hardened Stainless Steel

Hardened Stainless Steel

UHMW-PE/

Glass-filled

PTFE (staggered)

66914

637316

66066-3

637006-3

NP328D02-1

0 - 150

(0 - 10.3)

840 - 4,200

(57.4 - 285.7)

0.38

(1.4)

1.4

(24.0)

Hardened Stainless Steel

Hardened Stainless Steel

UHMW-PE/Leather

(staggered)

66914

637316

66066-2

637006-2

NP328D02-2

0 - 150

(0 - 10.3)

840 - 4,200

(57.4 - 285.7)

0.38

(1.4)

1.4

(24.0)

Hardened Stainless Steel

Hardened Stainless Steel

UHMW-PE/

Glass-filled

PTFE (staggered)

66914

637316

66066-3

637006-3