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NM2322E F Series Chop Check

  • 22:1 Ratio
  • 3" Air Motor
  • 0.99 GPM (3.7 LPM) Max Flow
  • Max Fluid: 3,300 psi

Chop-Check pumps are designed to move medium-to-high viscosity fluids in difficult applications.

The heavy-hitters of the line, ARO® chop-check pumps are designed to move medium-to high- viscosity fluids ranging from 15,000 cPs to more than 1,000,000 cPs, and at delivery rates up to 12.2 gpm (46.3 L/min).

Applications advantages of Chop-Check:

Extrusion: Chop-Check pumps are workhorses - able to deliver viscous adhesives, sealants, caulking and heavy lubricants to the application point at the desired pressure and flow rate.

Transfer & Supply: Depending on the model, some Chop-Check pumps are capable of achieving flow rates up to 12.2 gpm, ensuring efficient transfer of heavy greases, inks and other viscous materials.

Materials advantages of Chop-Checks:

Chop-Check pumps have a primer piston to ‘feed’ material into the pump. They are often used in conjunction with a follower plate to force material down. This prevents loss of prime due to Channeling - a condition where the pump inlet becomes surrounded by air due to the cavity formed when a high viscosity material does not level off when removed (Slumpability).

  • Stringy materials: Chop-Checks have mechanical, flat checks to overcome materials that resist cut-off and adhere to themselves.
  • Tacky materials: Chop-Check pump options come in high ratios to generate the fluid pressure needed to move materials that will adhere to hoses and equipment while wet.
piston pump NM2322EF flow directions

Pump Model**

Lower Pump Model Materia

Plunger Material

Upper Packings

Lower Packings

Lower Pump Model

Pump Service Kit

NM2322E-11-P43

Carbon Steel

17-4

Stainless*

UHMW-PE PTFE Staggered

UHMW-PE with standard plunger

67100-P43

NM2322E-11-P48

Carbon Steel

17-4

Stainless*

UHMW-PE PTFE Staggered

UHMW-PE with alternative piston**

67100-P48

NM2322E-71-P43

Carbon Steel

17-4

Stainless*

UHMW-PE PTFE Staggered

UHMW-PE with standard plunger

67100-P43

NM2322F-11-P43

Stainless Steel

17-4

Stainless*

UHMW-PE PTFE Staggered

UHMW-PE with standard plunger

67101-P43

NM2322F-11-P48

Stainless Steel

17-4

Stainless*

UHMW-PE PTFE Staggered

UHMW-PE with alternative piston**

67101-P48

NM2322F-71-P48

Stainless Steel

17-4

Stainless*

UHMW-PE PTFE Staggered

UHMW-PE with standard plunger

67101-P43

Ratio

22:1

Stroke

3” (7.62 cm)

Material Inlet

Follower Plate Mounted

Material Outlet

1/2” 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 - 3

Max Cycles/Minute

120

Displacement/Cycle cu in (cm3)

1.9 (31.1)

Cycles/gal (L)

121.6 (32.1)

Flow @ 60 Cycles gpm (L/min)

.5 (1.9)

Noise Level @ 100 psi dBA

85

Weight* lb (kg)

NM2322E-11-P43 29 (13.2)NM2322E-11-P48 29 (13.2)NM2322E-11-P71 33 (15.0)

Dimensions

NM2322E-11-P4X

NM2322E-71-P4X

NM2322F-11-P4X

NM2322F-71-P4X

A in (mm)

33-23/32” (856.1)

42-5/8” (1082.6)

33-23/32” (856.1)

42-5/8” (1082.6)

B in (mm)

24-15/32” (620.8)

33-11/32” (846.9)

24-15/32” (620.8)

33-11/32” (846.9)

piston pump NM2322EF dimensions
piston pump NM2322EF flow rate
5-gallon Cart Mount
Cart Mount 5 Gallon
Single-post 5-gall
Single Post Ram 5 Gallon
Two-post Ram 5-gallon
Two Post Ram 5 Gallon
Two-post Ram 55-gallon
Two Post Ram 55 Gallon

Model No.

Package Type

Pump Model

Ram/Lift Model

Follower

Follower Seal Description

Material

NP322L01-1

5-Gallon Pail

Cart Mount

NM2322E-11-P43

67075-B

651840-1

290mm Single Lip

NP322L02-1

5-Gallon Pail

Cart Mount

NM2322F-11-P43

67075-B

651841-1

290mm Single Lip

NP322R03-1

55-Gallon Drum

Two-Post Ram

NM2322E-11-P43

651616-2

66516-1

Double Lip

NP322R03-2

55-Gallon Drum

Two-Post Ram

NM2322F-11-P43

651616-52

66516-6

Double Lip

NP322EP43R7-10

5-Gallon Drum

Single-Post Ram

NM2322E-11-P43

RM051S-C-B

651840-1

290mm Single Lip

NP322FP43R7-13

5-Gallon Drum

Single-Post Ram

NM2322F-11-P43

RM051S-C-B

651841-1

90mm Single Lip

NP322EP43R8-10

5-Gallon Drum

Two-Post Ram

NM2322E-11-P43

RM051S-C-B

651840-1

290mm Single Lip

NP322EP43R8-13

5-Gallon Drum

Two-Post Ram

NM2322F-11-P43

RM052S-C

651840-1

290mm Single Lip

Recommended Accessories

Extrusion Guns

651500 For material over 200,000 cP 3/8” (F) inlet

651533 For low- to medium-viscosity fluids 1/4” NPS (M) inlet

Extrusion Gun Nozzle Kits

66541-6 Orifice .063” (1.63 mm), 66541-9 Orifice .093” (2.36 mm),

66541-2 Orifice .125” (3.17 mm)

Swivel

636085 Straight, 3/8” (M) x 3/8” (F) / fabric with neoprene / 8,000 psi (552 bar) max. working pressure

636088 Z-360°, 3/8” (M) x 3/8” (F) / fabric with neoprene / 8,000 psi (552 bar) max. working pressure

75364 Straight, for use with 651533 gun / 1/4”-18 NPTF to 1/4”-18 NPSM / 10,000 psi (690 bar) max working pressure

Material Filters

1” F (2) inlet 3/8” F (3) outlet / 6,000 psi (414 bar) max. / Carbon Steel

651418-40-B for 40 Mesh (375 Microns)

651418-70-B for 70 Mesh (200 Microns)

3/8” Fluid Pressure Regulators

651780-A3A-B Regulated 400 – 1,250 psi (28 – 86 bar) / 3,000 psi (207 bar) max. inlet / stainless steel

651780-B1A-B Regulated 400 – 1,250 psi (28 – 86 bar) / 3,000 psi (207 bar) max. inlet / carbon steel

651780-B1B-B Regulated 400 – 1,250 psi (28 – 86 bar) / 5,000 psi (345 bar) max. inlet / carbon steel

651780-B3R-B Regulated 400 – 1,250 psi (28 – 86 bar) / 5,000 psi (345 bar) max. inlet / stainless steel

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