The GRACO DB2988 is a 1-1/2" NPT standard air-operated double diaphragm pump with a polypropylene (Pp) fluid section, aluminum (Al) center section, polypropylene seats, and flouroelastomer balls and diaphragm. It is designed for industrial fluid transfer applications, offering robust chemical resistance and reliability.

Key Features:

• Air-operated double diaphragm pump
• Husky 1590, 1-1/2" NPT
• Polypropylene (Pp) fluid section, aluminum (Al) center section, polypropylene seats, flouroelastomer balls and diaphragm
• Up to 100 gpm (378 lpm) (for Husky 1590 series, may vary by configuration)
• Maximum fluid working pressure: 120 psi (8.4 bar, 0.84 MPa)
• Industrial fluids, chemicals, water, wastewater, and compatible with a wide range of aggressive media
• High-reliability closed center air valve
• Externally accessible air valve for easy maintenance
• Fewer parts than industry peers
• Up to 5 times longer diaphragm life compared to other air-operated diaphragm pumps in its class
• Robust construction for harsh environments

Applications:
Industrial fluid transfer, chemical processing, water and wastewater management, mining, agriculture, and other demanding environments requiring reliable and chemical-resistant pumping solutions.

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 thread sealant for NPT connections
• Check for leaks after installation
• Follow manufacturer’s guidelines for air supply and pressure settings
• Regularly inspect and maintain the air valve and diaphragm for optimal performance
• Regularly inspect diaphragms and balls for wear
• Clean pump internals as needed to prevent buildup
• Replace worn parts with genuine GRACO components
• Keep air supply clean and dry