Wilden AODD Pumps for Pharmaceuticals and Cosmetics

Wilden Pharmaceuticals and Cosmetics

• What is the difference between FDA-compliant and sanitary AODD pumps for pharmaceutical use?

  Wilden FDA-compliant, sanitary AODD pumps are ideal for food, cosmetics and pharmaceutical-grade applications that require cleanability. FDA-compliant indicates that the plastic and elastomeric materials used in the pump are safe for direct food contact. Hygienic AODD pumps have FDA-compliant plastics and elastomeric materials, but also feature designs that allow for higher-quality cleanability to minimize the risk of bacteria or contaminants. These designs can include polished internals, sanitary connections, clean-in-place capabilities and improved drainability.

• Is ATEX certification required for transferring solvents with AODD pumps?

  ATEX-certified or similar explosion-proof certified, pharmaceutical-grade pumps are often required for solvent transfer in explosive environments.

• Can Wilden AODD diaphragm pumps handle high viscosity pharmaceutical pastes?

  Wilden AODD pumps can effectively manage highly viscous pharmaceutical products, handling viscosities up to 25,185 cPs. For optimal performance in high-viscosity applications, follow these best practices:

  • Minimize Friction: Use suction lines up to three times larger than the pump ports to reduce friction losses.

  • Optimize Positioning: Locate the pump as close as possible to or even below the fluid level.

  • Ensure Proper Startup: Initiate the fluid flow gradually using an air line valve. Set the air pressure by slowly cracking the valve open.

  • Adjust for Performance: High viscosity will impact pump performance. Consult the viscosity correction guide to accurately interpret the performance curve for these fluids.

• How do Wilden AODD pumps prevent product entrapment in sanitary fluid handling?

  Product entrapment can be prevented in AODD pumps by draining them completely after use. Specific AODD pumps, such as the Wilden Saniflo™ Hygienic™ Series, feature a free-draining flow path that enables easy draining and clean-in-place (CIP) capability. The pumps can also run dry and clear out as much process fluid as possible before sitting for longer periods, or they can operate with water to flush the process fluid out after use.

• Are AODD pumps suitable for transferring shear-sensitive lotions and cosmetic creams?

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