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AF0844 Series Chop Check Piston Pump

  • 44:1 Ratio
  • 8" Air Motor
  • Max Flow: 3.8 GPM (14.3 l/min)
  • Max Fluid Pressure: 5,964 psi (411.2 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, 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.

Available Models

Pump Model**

Lower Pump Model Material

Plunger Material

Upper Packings

AF0844S11FF47

Carbon Steel

Nickel-Plated

17-4 Stainless Steel w/Hard Chrome

AF0844S11HH47

Carbon Steel

Nickel-Plated

17-4 Stainless Steel w/Hard Chrome

AF0844S11RK47

Carbon Steel

Nickel-Plated

17-4 Stainless Steel w/Hard Chrome

AF0844T11FF4G 

Stainless Steel

17-4 Stainless Steel w/Hard Chrome 

UHMW-PE 

AF0844T11KK4G 

Stainless Steel

17-4 Stainless Steel w/Hard Chrome 

Glass Filled PTFE 

AF0844T11RK4G 

Stainless Steel

17-4 Stainless Steel w/Hard Chrome 

Glass Filled PTFE/ UHMW-PE (Staggered) 

AF0844T11SS4G 

Stainless Steel

17-4 Stainless Steel w/Hard Chrome 

Virgin PTFE 

**Add “-1” to model number for ball valve regulator 





Ratio

44:1

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)

30 - 120 (2.1 - 8.3)

Fluid Pressure Range psi (bar)

1320 - 5964 (91.0 - 411.3)

Max Cycles/Minute

70

Displacement/Cycle cu in (cm3)

12.5 (204.8)

Cycles/gal (L)

18.5 (4.8)

Flow @ 60 Cycles gpm (L/min)

3.8 (14.3)

Noise Level @ 60 psi dBA

86.8

Weight* lb (kg)

165 (74.8)

Container Suitability

Remote Mounting

A 1 in (mm)

50.60(1285.32)

B in (mm)

27.55 (699.72)

C in (mm)

17.74 (450.49)

TPX SeriesTwo Post Ram5 Gallon
TPX SeriesTwo Post Ram55 Gallon
HDX SeriesHeavy Duty Two Post Ram55 Gallon

44:1 Ratio Pump Packages

Model No.

Package Type

Pump Model

Ram/Lift Model

Follower

Follower Seal Description

Material

CARBON STEEL PACKAGES







TP0844S21FF47E32

5 Gallon Two Post Ram

AF0844S11FF47

RM052S-C

67342-1

Single Lip

Polyurethane/Urethane

TP0844S51FF47AA2

55 Gallon Two Post Ram

AF0844S11FF47

RM552S-C

66516-1

Double Lip

Polyurethane

TP0844S51FF47AN2

55 Gallon Two Post Ram

AF0844S11FF47

RM552S-C

67195-2

Double Tube

EPR

TP0844S51HH47AA2

55 Gallon Two Post Ram

AF0844S11HH47

RM552S-C

66516-1

Double Lip

Polyurethane

TP0844S51HH47AC2

55 Gallon Two Post Ram

AF0844S11HH47

RM552S-C

66516

Double Lip

Nitrile

TP0844S51RK47AA2

55 Gallon Two Post Ram

AF0844S11RK47

RM552S-C

66516-1

Double Lip

Polyurethane

TP0844S51RK47AC2

55 Gallon Two Post Ram

AF0844S11RK47

RM552S-C

66516

Double Lip

Nitrile

TP0844S51RK47TA2

55 Gallon Two Post Ram

AF0844S11RK47

RM552S-C

66516-6

Double Lip

Polyurethane

HD0844S51FF47AN2

55 Gallon Heavy Duty Two Post Ram

AF0844S11FF47

RM552H-C

67195-2

Double Tube

EPR

STAINLESS STEEL PACKAGES







TP0844T21KK4GS22

5 Gallon Two Post Ram

AF0844T11KK4G

RM052S-C

67536-1

Single Lip

Polyurethane

TP0844T21KK4GTU2

5 Gallon Two Post Ram

AF0844T11KK4G

RM052S-C

67532-1

Single Tube

EPR

TP0844T51KK4GTK2

55 Gallon Two Post Ram

AF0844T11KK4G

RM552S-C

67527-1

Double Tube

EPR

TP0844T51KK4GTL2

55 Gallon Two Post Ram

AF0844T11KK4G

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 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)

3/4” 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