The GRACO DB4711 is a Husky 1590 series air-operated double diaphragm pump featuring a stainless steel fluid section, aluminum center section, Buna-N seats, PTFE balls, and PTFE diaphragm. It is designed for industrial fluid transfer applications, offering robust construction and reliable performance in demanding environments.

Key Features:

• Pneumatic Diaphragm Pump
• Husky 1590, 1-1/2" NPT
• Stainless steel fluid section, aluminum center section, Buna-N seats, PTFE balls, PTFE diaphragm
• Up to 100 gpm (378 lpm)
• Up to 120 psi (8.4 bar, 0.84 MPa)
• Industrial fluids, compatible with various chemicals and abrasives depending on material selection
• ATEX, CE
• Patented, high-reliability closed center air valve (online serviceable)
• Epoxy-coated air section for tough environmental conditions
• Lube-free operation
• 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

Applications:
Industrial fluid transfer, chemical processing, mining, agriculture, and other demanding environments requiring robust, reliable pumping solutions.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and safety. Non-genuine parts may compromise pump efficiency and longevity.
• Ensure proper alignment of pump and piping
• Use appropriate thread sealant for NPT connections
• Verify air supply is clean and dry
• Check for leaks after installation
• Follow manufacturer’s torque specifications for all connections
• Regularly inspect diaphragms, balls, and seats for wear
• Service air valve externally without uninstalling the pump
• Keep air section clean and free from debris
• Replace worn components with genuine GRACO parts