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  • 30:1 Ratio
  • 12" Air Motor
  • Max Flow: 12.2 GPM (46.3 l/min)
  • Max Fluid Pressure: 3,250 psi (224 bar)

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 AF1230 flow directions

Pump Model**

Lower Pump Material

Plunger Material

Upper Packings

AF1230S11FF44

Carbon Steel

Nickel-Plated

Carbon Steel w/Hard Chrome

AF1230S11HF44

Carbon Steel

Nickel-Plated

Carbon Steel w/Hard Chrome

AF1230S11PF14

Carbon Steel

Nickel-Plated

Carbon Steel w/Hard Chrome

Ratio

23:1

Stroke

6” (15.24 )

Material Inlet

2” NPT(F)

Material Outlet

1-1/4” 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)

690 - 2070 (47.6 - 142.8)

Max Cycles/Minute

70

Displacement/Cycle cu in (cm3)

59.8 (979.9)

Cycles/gal (L)

3.9 (1.0)

Flow @ 60 Cycles gpm (L/min)

18.1 (68.6)

Noise Level @ 60 psi dBA

93

Weight* lb (kg)

140 (63.5)

Container Suitability

Remote Mounting

A 1 in (mm)

54.43 (1382.47)

B in (mm)

31.34 (796.11)

C in (mm)

19.94 (506.40)

piston pump AF1230 flow rate
piston pump AF1230 dimensions
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