The GRACO DBD311 (also known as Husky 1590) is a stainless steel air-operated double diaphragm pump designed for high-flow, reliable transfer of fluids, including those with solids, in industrial environments. It is intended for use in demanding applications such as chemical transfer, wastewater, and process industries.

Key Features:

• Air-operated double diaphragm pump
• DBD311 / Husky 1590, 1-1/2 in. (38.1 mm) ANSI end-porting
• Stainless steel (also available in aluminum, polypropylene, PVDF)
• 100 gpm (378 lpm)
• 120 psi (8.4 bar, 0.84 MPa)
• Compatible with a wide range of fluids, including those with solids up to 0.19 in. diameter
• Lube-free operation
• Epoxy-coated air section for tough environmental conditions
• Up to five times longer diaphragm life compared to similar pumps
• Externally accessible air valve for easy servicing without uninstalling
• Compact and portable design

Applications:
Ideal for chemical transfer, wastewater, process industries, and other applications requiring reliable, high-flow fluid transfer with solids handling capability.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and safety in demanding industrial environments.
• Ensure proper alignment and secure mounting to prevent vibration and leaks
• Use compatible fittings and hoses rated for the intended pressure and fluid
• Follow manufacturer guidelines for air supply and exhaust
• Regularly inspect diaphragms and valves for wear and replace as needed