The GRACO DB3315 Husky 1590 is an air-operated double diaphragm pump featuring an aluminum center section, stainless steel seats, PTFE balls, and TPE diaphragm. It is designed for high-flow, reliable transfer of a wide range of fluids, including those with suspended solids, in industrial and maintenance applications.

Key Features:

• Air-operated double diaphragm pump
• Husky 1590, 1-1/2" NPT
• Aluminum center section, stainless steel seats, PTFE balls, TPE diaphragm
• Maximum free flow delivery: 100 gpm (378.5 lpm)
• Maximum fluid working pressure: 120 psi (8.4 bar, 0.84 MPa)
• Compatible with a wide range of fluids, including those with suspended solids up to 0.19 in (4.8 mm)
• Patented, high-reliability closed center air valve
• Online serviceable air valve
• Epoxy-coated air section for tough environments
• Lube-free operation
• Compact, portable size
• High flow in a small footprint

Applications:
Ideal for transferring fluids in industrial, mining, agricultural, and maintenance settings. Suitable for handling abrasive, viscous, or corrosive fluids, as well as slurries and fluids with suspended solids.

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 inlet and outlet connections
• Use appropriate thread sealant for NPT connections
• Check for leaks after installation
• Follow manufacturer’s guidelines for air supply and pressure settings
• Regularly inspect diaphragms, balls, and seats for wear and replace as needed