The GRACO D5A311 is an air-operated double diaphragm pump designed for industrial fluid transfer. It features a polypropylene (PP) center section, stainless steel (SS) seats, PTFE balls, and a PTFE diaphragm, making it suitable for handling a wide range of chemicals and fluids in demanding environments.

Key Features:

• Air-operated double diaphragm pump
• Husky 515 AC, 1/2 in. (13 mm) BSP
• Polypropylene center section, stainless steel seats, PTFE balls, PTFE diaphragm
• Up to 15 gpm (56.7 lpm) for Husky 515 series
• Maximum fluid working pressure: 100 psi (0.7 MPa, 7 bar)
• Industrial applications, compatible with a wide range of chemicals due to material selection
• Stall-free low pulsation air valve for smooth and rapid changeover
• Bolt-through fluid cover design for leak elimination and higher reliability
• No mechanical seals to cause fluid leaks or failures
• Runs quietly at less than 85 dBa, with remote muffler capability
• Easy-to-service air valve and ball checks
• Split manifold option available for pumping multiple fluids without mixing
• Reliable air valve for years of dependable performance

Applications:
Industrial fluid transfer, chemical processing, and other applications requiring reliable, leak-free pumping of aggressive or corrosive fluids.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and safety, and maintains warranty coverage.
• Ensure proper alignment and secure all connections according to the manual
• Keep a fire extinguisher in the work area and do not operate gasoline engines nearby
• Monitor pulse output and adjust reed switch as needed for optimal operation
• Regularly inspect and maintain air valve and ball checks for continued reliability