The GRACO 25C421 is a sanitary, electric progressive cavity drum pump designed for hygienic transfer of low to high viscosity fluids. It is constructed with food-grade materials suitable for food, beverage, and personal care applications. The pump is intended for use in transferring ingredients from drums to fillers and kettles in industrial settings.

Key Features:

• Progressive cavity drum pump
• 25C421, 39 inch (99 cm) lower
• Sanitary, food-grade materials
• Up to 35 GPM (132 L/min)
• Designed for use with drums, totes, or kettles
• Variable speed electric motor for flexible operation
• Simple, hygienic design for easy cleaning and reduced maintenance
• Minimal moving parts for reliability and reduced downtime
• Recommended for intermittent duty use to prevent premature motor wear (e.g., 30-minute cycles)
• Quick knockdown design for fast product changeovers

Applications:
Ideal for transferring low, medium, and high viscosity fluids in food, beverage, pharmaceutical, personal care, brewery, distillery, and winery applications.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, safety, and compliance with industry standards.
• Position the motor over the coupler and tighten the nut hand tight during assembly
• For this model, assemble on a horizontal surface; do not attempt vertical assembly
• Ensure the shaft assembly is properly inserted and the outer tube hex nut is tightened with a large wrench
• Install gasket to the male end of the drive shaft before threading the rotor
• Use food-grade lubricant on the stator to aid insertion
• Align the alignment tab on the stator tube with the recess on the stator during installation
• Attach the ground wire to the lower unit as specified in the manual
• Clean the pump thoroughly between product changeovers
• Inspect and replace gaskets and seals as needed
• Follow recommended duty cycles to prevent motor wear