The GRACO DF5666 is an air-operated double diaphragm pump featuring a PVDF (Kynar) fluid section, aluminum center section, and Santoprene (SP) seats, balls, and diaphragm. It is designed for high-efficiency, reliable fluid transfer in demanding industrial environments, compatible with a wide range of chemicals and abrasive fluids.

Key Features:

• Air-operated double diaphragm pump
• Husky 2150, 2 in. (51 mm) NPT
• PVDF (Kynar) fluid section, aluminum center section, Santoprene (SP) seats, balls, and diaphragm
• Up to 150 gpm (568 lpm)
• 120 psi (8.4 bar, 0.84 MPa)
• Compatible with a wide range of chemicals and abrasive fluids; 2 in. (51 mm) ANSI end-porting
• Stall-free low pulsation air valve for smooth and rapid changeover
• Up to 40% more efficient than comparable pumps
• Up to 5 times longer diaphragm life compared to other air-operated diaphragm pumps
• Fewer parts than industry peers; complete air valve is externally accessible for fast, easy servicing
• Lube-free operation
• Epoxy-coated air section for tough environmental conditions

Applications:
Ideal for transferring chemicals, abrasive fluids, and slurries in industrial, mining, and agricultural settings. Suitable for applications requiring high flow rates, reliability, and resistance to harsh chemicals.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and compatibility with existing equipment.
• Ensure proper alignment and secure mounting of the pump
• Use appropriate fittings and piping for the intended fluid and pressure
• Regularly inspect and maintain the air valve and diaphragm for optimal performance
• Follow GRACO’s recommended maintenance schedule for long service life