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AF0412 Series Chop Check Piston Pumps

  • 12:1 Ratio
  • Max Flow: 3.2 GPM (12.3 LPM)
  • Max Fluid Pressure: 2,085 psi (143.8 bar)
  • Lower pump material available in carbon steel or stainless steel

Chop-Check pumps are designed to move medium-to-high viscosityfluids 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 (46.3 L/min), 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.

Pump Model**

Lower Pump Material

Plunger Material

Upper Packings

Lower Packings

Lower Pump Model

Pump Service Kit

AF0412S11FF47

Carbon Steel

Nickel Plated

17-4 Stainless Steel w/Hard Chrome

UHMW-PE

UHMW-PE

66243-C43-B

AF0412S11KK47

Carbon Steel

Nickel Plated

17-4 Stainless Steel

Glass Filled PTFE

Glass Filled PTFE

66243-343-B

AF0412S11HH47

Carbon Steel

Nickel Plated

17-4 Stainless Steel

UHMW-PE/Leather (Staggered)

UHMW-PE/Leather (Staggered)

66243-G43-B

AF0412S11GF47

Carbon Steel

Nickel Plated

17-4 Stainless Steel

UHMW-PE/Glass Filled PTFE (Staggered)

UHMW-PE

66243-P43-B

AF0412S11RK47

Carbon Steel

Nickel Plated

17-4 Stainless Steel

Glass Filled PTFE/UHMW-PE (Staggered)

Glass Filled PTFE

66243-R43-B

AF0412T11FF47 

Stainless Steel

17-4 Stainless Steel w/Hard Chrome 

UHMW-PE 

UHMW-PE 

1756T11FF47 

K1756T11FF00 

AF0412T11KK47 

Stainless Steel

17-4 Stainless Steel w/Hard Chrome 

Glass Filled PTFE 

Glass Filled PTFE 

1756T11KK47 

K1756T11KK00 

AF0412T11RK47 

Stainless Steel

17-4 Stainless Steel w/Hard Chrome 

Glass Filled PTFE/UHMW-PE (Staggered)

Glass Filled PTFE 

1756T11RK47 

K1756T11RK00 

AF0412T11SS47 

Stainless Steel

17-4 Stainless Steel w/Hard Chrome 

Virgin PTFE 

Virgin PTFE 

1756T11SS47 

K1756T11SS00 

Ratio

12:1

Stroke

6” (15.24 cm)

Material Inlet

Flange Mount

Material Outlet

1” NPT(F)

Air Inlet (female)

1/2” NPT(F)

Air Inlet Pressure Range psi (bar)

0 - 150 (0 - 10.3)

Fluid Pressure Range psi (bar)

0 -2085 (0 - 143.8)

Max Cycles/Minute

60.0

Displacement/Cycle cu in (cm3)

12.5 (204.8)

Cycles/gal (L)

18.5 (4.8)

Flow @ 60 Cycles gpm (L/min)

3.2 (12.3)

Noise Level @ 60 psi dBA

86.5

Weight* lb (kg)

64 (29)

Container Suitability

Remote Mounting

A 1 in (mm)

54.01 (1371.83)

B in (mm)

30.74 (780.69)

C in (mm)

17.74 (450.49)

Model No.

Package Type

Pump Model

Ram/Lift Model

Follower

Follower Seal Description

Material

CARBON STEEL PACKAGES







TP0412S51FF47AA2

55 Gallon Two Post Ram

AF0412S11FF47

RM552S-C

66516-1

Double Lip

Polyurethane

TP0412S51KK47AA2

55 Gallon Two Post Ram

AF0412S11KK47

RM552S-C

66516-1

Double Lip

Polyurethane

TP0412S51KK47AN2

55 Gallon Two Post Ram

AF0412S11KK47

RM552S-C

67195-2

Double Tube

EPR

TP0412S51HH47AA2

55 Gallon Two Post Ram

AF0412S11HH47

RM552S-C

66516-1

Double Lip

Polyurethane

TP0412S51GF47TA2

55 Gallon Two Post Ram

AF0412S11GF47

RM552S-C

66516-6

Double Lip

Polyurethane

TP0412S51GF47AA2

55 Gallon Two Post Ram

AF0412S11GF47

RM552S-C

66516-1

Double Lip

Polyurethane

STAINLESS STEEL PACKAGES







SP0412T21KK47S22

5 Gallon Single Post Ram

AF0412T11KK47

RM051S-C-B

67536-1

Single Lip

Polyurethane

SP0412T21KK47TU2

5 Gallon Single Post Ram

AF0412T11KK47

RM051S-C-B

67532-1

Single Tube

EPR

TP0412T21KK47S22

5 Gallon Two Post Ram

AF0412T11KK47

RM052S-C

67536-1

Single Lip

Polyurethane

TP0412T21KK47TU2

5 Gallon Two Post Ram

AF0412T11KK47

RM052S-C

67532-1

Single Tube

EPR

TP0412T51KK47TK2

55 Gallon Two Post Ram

AF0412T11KK47

RM552S-C

67527-1

Double Tube

EPR

TP0412T51KK47TL2

55 Gallon Two Post Ram

AF0412T11KK47

RM552S-C

67527-2

Double Tube

FDA Neoprene

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 Kits66541-6 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)

3/4” Fluid Pressure Regulators
651780-C1B-B Regulated 750 – 2,500 psi (52 – 173 bar) / 6,000 psi (414 bar) max. inlet / carbon steel
651780-C1C-B Regulated 2,000 – 5,000 psi (138 – 345 bar) / 6,000 psi (414 bar) max. inlet / carbon steel
651780-C3B-B Regulated 750 – 2,500 psi (52 – 173 bar) / 6,000 psi (414 bar) max. inlet / stainless steel
651780-C3R-B Regulated 750 – 5,000 psi  (52 – 345 bar) / 6,000 psi (414 bar) max. inlet / stainless steel