The GRACO DFH777 is a robust, air-operated double diaphragm metal pump designed for industrial fluid transfer. It features a metal construction with Buna-N (BN) seat material, making it suitable for handling a wide range of fluids in demanding environments. Its intended use is for efficient, reliable, and high-volume fluid transfer within GRACO equipment and compatible industrial systems.

Key Features:

• Pneumatic Diaphragm Pump
• Husky 2150 AL, 2 in. (51 mm) ANSI end-porting
• Metal (aluminum), Buna-N seat
• Up to 150 gpm (568 lpm)
• Up to 120 psi (8.4 bar, 0.84 MPa)
• Designed for integration with GRACO and compatible industrial systems
• ATEX, CE
• Overall improved efficiency (up to 40% more efficient)
• Highest fluid flow rate in its class
• Up to 5 times longer diaphragm life compared to other air operated diaphragm pumps
• Expanded material offering for diverse applications
• Fewer parts than industry peers; air valve is externally accessible for quick, easy servicing without uninstalling the pump
• Lube-free operation
• Epoxy-coated air section for tough environmental conditions

Applications:
Industrial fluid transfer, including mining, agriculture, chemical processing, and other demanding environments requiring high flow rates and robust construction.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and safety. Non-genuine parts may compromise efficiency and longevity.
• Ensure proper alignment and secure mounting of the pump
• Connect air supply according to manufacturer specifications
• Verify all connections are tight and leak-free before operation
• Regularly inspect and maintain accessible air valve for optimal performance
• Regularly check diaphragm and valve condition
• Clean and inspect the pump according to the maintenance schedule
• Use only recommended replacement parts