The GRACO DB3311 is a metallic bolted air-operated double diaphragm pump designed for industrial fluid transfer. It features an aluminum fluid section, aluminum center, stainless steel (SS) seats, PTFE balls, and a PTFE/EPDM diaphragm. This pump is intended for reliable, high-volume transfer of fluids in demanding environments.

Key Features:

• Air-Operated Double Diaphragm Pump
• Husky 1590, 1-1/2 in. (38.1 mm) NPT
• Aluminum fluid section, aluminum center, stainless steel (SS) seats, PTFE balls, PTFE/EPDM diaphragm
• 100 gpm (gallons per minute)
• 120 psi (8.4 bar, 0.84 MPa)
• Compatible with a wide range of industrial fluids; check chemical compatibility for specific applications
• ATEX, CE
• Robust metallic bolted construction for durability
• Externally accessible air valve for easy maintenance
• High flow rate and pressure handling
• Designed for long service life and reliability
• Fewer parts than industry peers for simplified maintenance

Applications:
Ideal for transferring fluids in industrial, mining, agricultural, and chemical processing applications where high flow rates and reliable performance are required.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, safety, and longevity of the pump. Non-genuine parts may compromise reliability and void warranties.
• Ensure proper alignment and secure mounting of the pump
• Use appropriate thread sealant on NPT connections
• Check for leaks after installation
• Follow manufacturer torque specifications for assembly
• Regularly inspect and maintain the air valve and diaphragm for optimal performance
• Periodically check and replace diaphragms and seals as needed
• Keep the air valve clean and lubricated
• Inspect for wear and corrosion, especially in harsh environments
• Refer to the manual for detailed maintenance schedules and procedures