The GRACO DB2666 is an air-operated double diaphragm pump designed for industrial fluid transfer applications. It features a polypropylene (PP) body, aluminum (AL) center section, and SP (Santoprene) seats, balls, and diaphragm. This pump is engineered for reliable, long-lasting performance in handling a wide range of fluids, including chemicals, detergents, and oils.

Key Features:

• Air-operated double diaphragm pump
• Husky 1590, 1-1/2 in. (38.1 mm) NPT
• Polypropylene (PP) body, aluminum (AL) center section, SP (Santoprene) seats, balls, and diaphragm
• Maximum free flow delivery: 100 gpm (378.5 lpm) (for Husky 1590 series; specific to DB2666 not always specified, but this is the series maximum)
• Maximum fluid working pressure: 120 psi (8.4 bar, 0.84 MPa)
• Compatible with a wide range of fluids including chemicals, detergents, antifreeze, motor oil, and asphalt sealer
• Offered in ATEX configuration (not standard; check specific model for certification)
• Up to 5 times longer diaphragm life compared to other air-operated diaphragm pumps in its class
• Expanded material offering for diverse applications
• Fewer parts than industry peers
• Externally accessible air valve for quick, easy servicing without uninstalling the pump
• Patented, high-reliability closed center air valve
• Epoxy-coated air section for tough environmental conditions

Applications:
Industrial fluid transfer, chemical processing, lubrication systems, handling detergents, antifreeze, motor oil, and asphalt sealer

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and safety. Non-genuine parts may compromise pump integrity and void warranties.
• Ensure all connections are secure and properly sealed to prevent leaks
• Follow manufacturer’s pressure relief procedures before servicing
• Install in a location that allows easy access for maintenance
• Use appropriate personal protective equipment during installation and maintenance
• Regularly inspect diaphragms, seats, and balls for wear
• Relieve pressure before performing any maintenance
• Keep the air valve and center section clean and free from debris
• Consult the manual for specific installation and maintenance instructions