Products
Pneumatic Diaphragm Pumps
Electric Diaphragm Pumps
Piston Pumps
Filter Regulator Lubricators
Lubrication Equipment
Pneumatic Valves & Cylinders
Services
Technologies
How Diaphragm Pumps Work
How Do Powder Pumps Work
Electric Diaphragm Pumps: An Overview
Piston Pumping Fundamentals
Piston Pump Motor Technologies
Support
Diaphragm Pump Selector Tool
Chemical Compatibility Guide
Blog
ARO Product Park
On-Demand Webinars
Knowledge Hub
Document Library
AODD Manufacturer Comparison Guide
Markets
General Manufacturing
Chemical Transfer
Data Centers
Lubrication
Energy
Food & Beverage
Mining
Other Industries
Back to the product list

AF1020 Series Chop Check Piston Pump

  • 20:1 Ratio
  • 10" Air Motor
  • Max Flow: 10.5 GPM (39.7 l/min)
  • Max Fluid Pressure: 2,250 psi (155.2 bar)


About the Chop-check pneumatic piston pump range of ARO:

The heavy-hitters of the line, ARO chop-check pumps are designed to move medium to high viscosity fluids ranging from 15,000 to more than 1,000,000 cPs, and at delivery rates up to 12 gpm (46.3 l/min).

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

Applications advantages of ARO Chop-Check piston pumps:

  • 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.

Pump Model**

Lower Pump Model Material

Plunger Material

Upper Packings

AF1020S11FF44

Carbon Steel Nickel Plated

Carbon Steel

w/Hard Chrome

AF1020S11HF44

Carbon Steel Nickel Plated

Carbon Steel

w/Hard Chrome

AF1020S11PF14

Carbon Steel Nickel Plated

Carbon Steel

w/Hard Chrome

Ratio

20:1

Stroke

6” (15.24 cm)

Material Inlet

Flange Mount

Material Outlet

1-1/2” NPT(F)

Air Inlet (female)

3/4” NPT(F)

Air Inlet Pressure Range psi (bar)

30 - 90 (2.1 - 6.2)

Fluid Pressure Range psi (bar)

600 - 2250 (41.4 - 155.2)

Max Cycles/Minute

70

Displacement/Cycle cu in (cm3)

40.4 (662.0)

Cycles/gal (L)

5.7 (1.5)

Flow @ 60 Cycles gpm (L/min)

10.5 (39.7) (@70 Cycles)

Noise Level @ 60 psi dBA

89.8

Weight* lb (kg)

144 (65.3)

Container Suitability

Remote Mounting

A* in (mm)

54.40 (1381.71)

B in (mm)

31.34 (796.11)

C in (mm)

19.94 (506.40)

Model No.

Package Type

Pump Model

Ram/Lift Model

Follower

Follower Seal Description

Material

TP1020S51FF44AA2

55 Gallon Two Post Ram

AF1020S11FF44

RM552S-C

66517-1

Double Lip

Polyruethane


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