NM2322 Chop Check Series Pumps

NM2322E/F Series Chop Check Piston Pumps & Packages

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

22:1

3"
 

Available Models

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 637290-P43
NM2322E-11-P48 Carbon Steel 17-4, Stainless* UHMW-PE PTFE Staggered UHMW-PE with alternative piston** 67100-P48 637290-P48
NM2322E-71-P43 Carbon Steel 17-4, Stainless* UHMW-PE PTFE Staggered UHMW-PE with standard plunger 67100-P43 637290-P43
NM2322F-11-P43 Stainless Steel 17-4, Stainless* UHMW-PE PTFE Staggered UHMW-PE with standard plunger 67101-P43 637291-P43
NM2322F-11-P48 Stainless Steel 17-4, Stainless* UHMW-PE PTFE Staggered UHMW-PE with alternative piston** 67101-P48 637291-P48
NM2322F-71-P48 Stainless Steel 17-4, Stainless* UHMW-PE PTFE Staggered UHMW-PE with standard plunger 67101-P43 637291-P43

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

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.

Specifications

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 - 3,300 (0 - 277.6)
Max Cycles/Minute 120.0
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 85.0
Weight* lb (kg) NM2322E-11-P43 29 (13.2)
NM2322E-11-P48 29 (13.2)
NM2322E-11-P71 33 (15.0)
61204X-X Series Pumps
NM2322E-extrusion-dim

Dimensions

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)
C in (mm) 14-3/16” (360.5) 14-3/16” (360.5) 14-3/16” (360.5) 14-3/16” (360.5)

*For models without ball valve regulator subtract 2.08 in (52.83 mm)

Cart Mount
5 Gallon

NP322L01-1_l

Single Post Ram
5 Gallon

NP322R0X-1_l

Two Post Ram
5 Gallon

NP322XP43R7-XX_l

Two Post Ram
55 Gallon

NP322XP43R8-XX_l
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,

Polyethylene / Urethane

Carbon steel

NP322L02-1

5-Gallon Pail, Cart Mount

NM2322F-11-P43

67075-B

651841-1

 290mm Single Lip,

Polyethylene / Urethane

Stainless steel

NP322R03-1

55-Gallon Drum, Two-Post Ram

NM2322E-11-P43

651616-2

66516-1

Double Lip, Polyurethane

Aluminum

NP322R03-2

55-Gallon Drum, Two-Post Ram

NM2322F-11-P43

651616-52

66516-6

Double Lip, Polyurethane

Teflon-coated Aluminum

NP322EP43R7-10

5-Gallon Drum, Single-Post Ram

NM2322E-11-P43

RM051S-C-B

651840-1

290mm Single Lip,
Polyethylene / Urethane

Carbon steel

NP322FP43R7-13

5-Gallon Drum, Single-Post Ram

NM2322F-11-P43

RM051S-C-B

651841-1

90mm Single Lip,
Polyethylene / Urethane

 

Stainless steel

NP322EP43R8-10

5-Gallon Drum, Two-Post Ram

NM2322E-11-P43

RM051S-C-B

651840-1

290mm Single Lip,
Polyethylene / Urethane

Carbon steel

NP322EP43R8-13

5-Gallon Drum, Two-Post Ram

NM2322F-11-P43

RM052S-C

651840-1

290mm Single Lip,
Polyethylene / Urethane

Stainless steel

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