The GRACO DF3811 is a 2-inch air-operated double diaphragm (AODD) pump designed for reliable fluid transfer in demanding industrial environments. It features an aluminum center section, fluoroelastomer seats, PTFE balls, and a PTFE diaphragm, making it suitable for handling a wide range of fluids, including those requiring chemical resistance and durability.

Key Features:

• Air Operated Double Diaphragm (AODD) Pump
• Husky 2150, 2" NPT
• Aluminum center section, fluoroelastomer seats, PTFE balls, PTFE diaphragm
• Maximum free flow delivery: 150 gpm (568 lpm)
• Maximum working pressure: 120 psi (8.4 bar)
• Compatible with a wide range of fluids, including chemicals and abrasives; suitable for industrial and commercial applications
• Stall-free, low pulsation air valve for smooth operation
• Externally accessible air valve for easy maintenance
• Lube-free operation
• Epoxy-coated air section for tough environments
• Fewer parts than industry peers for simplified service
• Up to 5 times longer diaphragm life compared to other AODD pumps

Applications:
Ideal for fluid transfer in industries such as mining, agriculture, chemical processing, and general industrial maintenance. Suitable for handling chemicals, slurries, and abrasive fluids.

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 all safety instructions and local regulations
• Regularly inspect and maintain the pump according to the manufacturer’s guidelines
• Replace worn or damaged parts with genuine GRACO components