The GRACO DBD666 is a stainless steel (SS) air-operated double diaphragm pump with a 1-1/2 inch (38.1 mm) BSP connection, featuring an aluminum (AL) center section, SP seats, SP balls, and SP diaphragm. It is designed for reliable fluid transfer in demanding industrial environments, compatible with a wide range of liquids and slurries.

Key Features:

• Air-operated double diaphragm pump
• Husky 1590 SS, 1-1/2 in. (38.1 mm) BSP
• Stainless steel (SS) wetted parts, aluminum (AL) center section, SP seats, SP balls, SP diaphragm
• Maximum free flow delivery: 100 gpm (378.5 lpm)
• Maximum fluid working pressure: 120 psi (8.4 bar, 0.84 MPa)
• Compatible with a wide range of liquids and slurries, including those with solids up to 0.19 in (4.8 mm)
• Patented, high-reliability closed center air valve
• Online serviceable air valve for easy maintenance
• Up to 5 times longer diaphragm life compared to peers
• Externally accessible air valve for quick servicing without uninstalling the pump
• Fewer parts than industry peers

Applications:
Industrial fluid transfer, handling slurries, chemicals, and liquids with suspended solids in mining, agriculture, manufacturing, and other demanding environments.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and safety. Non-genuine parts may compromise pump efficiency and longevity.
• Ensure proper alignment and secure mounting of the pump
• Use appropriate piping and fittings for the intended application
• Follow manufacturer guidelines for air supply and pressure settings
• Regularly inspect and maintain diaphragms, seats, and balls for wear and tear
• Service the air valve externally without removing the pump from the system