Safely conveying viscous and thixotropic paints with air-operated diaphragm pumps

Finger paints are pumped from buckets, drums, or IBCs through pipe or hose systems into a processing system. The viscous and, in some cases, thixotropic media do not flow to the pump on their own.

Solution
FDM 25 air-operated diaphragm pump with accessories

Task

To convey finger paints from various containers, such as buckets, hobbocks, drums, or IBCs, to a processing plant. Conveyance is carried out via pipelines or hoses. The media range from viscous to pasty and are sometimes thixotropic.

Requirements
  • Pumping of viscous, thixotropic paints  
  • Self-priming without an inlet  
  • Pumping from various containers  
  • Adequate pipe cross-section required
Solution in Detail

A self-priming FDM 25 air-operated diaphragm pump delivers the finger paints through pipe or hose systems, regardless of the container type. A sufficiently large pipe diameter ensures adequate flow rate. Optionally, a pulsation damper reduces pressure fluctuations.

Result

Pumping of viscous paints

Finger paints are often thick and thixotropic. The self-priming compressed-air diaphragm pump ensures reliable delivery even without a natural feed. Operation is flexible, either via compressed-air control or by shutting off the delivery line.

Self-priming operation, even with paste-like fluids

Gentle handling due to low shear forces

Delivery pressure down to nearly atmospheric pressure (up to 8 bar)

Consistent flow rate with optional pulsation damper

Flexible control is also possible remotely

Products used

Compressed-air diaphragm pump with an optional pulsation damper and application-specific accessories for pumping viscous inks from various containers.

Air-operated diaphragm pumps

Diaphragm pumps for pumping even abrasive fluids

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