The GRACO DF3A21 is an air-operated double diaphragm pump with an aluminum center section, PVDF seats, acetal balls, and PTFE diaphragm. It is designed for reliable, efficient transfer of a wide range of fluids in industrial applications.

Key Features:

• Air-operated double diaphragm pump
• Husky 2150, 2" NPT
• Aluminum center section, PVDF seats, acetal balls, PTFE diaphragm
• Up to 150 gpm (568 lpm)
• Up to 120 psi (8.4 bar, 0.84 MPa)
• Compatible with antifreeze, detergents, motor oil, hydraulic fluid, water, wastewater, and more
• Stall-free low pulsation air valve for smooth and rapid changeover
• Lube-free operation
• Epoxy-coated aluminum for enhanced durability
• Reliable, robust construction for demanding environments
• Easy maintenance and serviceability

Applications:
Industrial fluid transfer, including antifreeze, detergents, motor oil, hydraulic fluid, water, wastewater, and other compatible liquids

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and compatibility with existing equipment.
• Ensure proper alignment of inlet and outlet connections (2" NPT female)
• Check for correct air supply and pressure settings before operation
• Inspect seals and diaphragms for wear or damage during installation and maintenance
• Follow manufacturer guidelines for maximum fluid pressure and flow rates
• Regularly inspect diaphragms, balls, and seats for wear or damage
• Replace worn components with genuine GRACO parts
• Keep pump and surrounding area clean to prevent contamination
• Monitor air consumption and fluid output for signs of reduced performance