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

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 piston 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.

Ingersoll Rand ARO Chop Check Pumps. AF Series with Carbon Steel Nickel Plated Lower Pump and 17-4 Stainless Steel w/ Hard Chrome Plunger.