AODD Pumps for Industrial Paint & Coating Applications

Wilden Paints and Coatings

• Are Wilden AODD pumps suitable for pumping flammable solvents and chemicals?

  Wilden AODD pumps are ideal for handling flammable chemicals in industrial paint applications. The Pro-Flo® SHIFT Series AODD Pumps, in aluminum and stainless steel construction, are fully conductive and can be grounded, allowing them to be ATEX-rated and safe for use in explosive environments. Wilden also offers Alloy C, conductive polypropylene and conductive PVDF pumps for aggressive flammable chemicals.

• Can AODD diaphragm pumps handle thick pastes and viscous resins?

  Wilden AODD pumps are ideal for handling viscous materials like the thick pastes and resins common in the paint industry, capable of processing fluids with viscosities up to 25,185 cPs.

  To optimize pump performance in high-viscosity applications:

  1. Use large suction lines: To minimize friction losses, suction lines should be up to three times the size of the pump ports.

  2. Minimize lift: Position the pump as close as possible to the fluid level, or ideally, below it.

  3. Start slowly: Initiate the fluid flow gradually using an air line valve. Begin by cracking the valve open slowly and setting the appropriate air pressure.

  Note that high viscosity impacts pump performance. Consult the viscosity correction guide for instructions on how to accurately read the performance curve when handling high-viscosity fluids.

  
  

• How can AODD pumps reduce shear damage to delicate or shear-sensitive resins?

  AODD pumps are a great option to minimize shear damage to delicate resins, as they are shear sensitive and do not have tight clearances or the fast-moving pumping elements that cause excessive shear in other pump technologies.

• Why are AODD pumps ideal for paint and coating applications?

  Wilden AODD pumps are designed to handle solvent-based paints, adhesives and shear-sensitive fluids efficiently. These AODD pumps are used in the paints and coatings industry because they are robust, reliable and flexible, minimize operating costs and downtime while meeting the demands of paint and coating manufacturers. The pumps offer total product containment and do not need a mechanical seal. They also offer quick and easy maintenance while maintaining the low-shear operation that is essential when working with these materials.

• What Wilden AODD pumps are best for paint and coating applications?

  Suitable AODD pumps for paints and coating applications are the Wilden Pro-Flo® SHIFT Series Clamped Metal AODD Pumps. The clamped design allows for quick maintenance and uses the minimum number of bolts and nuts to avoid difficult cleaning processes, while the Pro-Flo SHIFT Air Distribution System (ADS) offers best-in-class air efficiency, minimizing operating costs. The most common AODD pump configurations for paints and coatings are the Wil-Flex® diaphragm material with aluminum pumps for water-based paints and the PTFE diaphragm material with aluminum pumps for solvent-based paints.