The GRACO DB4411 Husky 1590 is a standard air-operated double diaphragm pump featuring a 1-1/2" NPT connection, aluminum venter section, hardened stainless steel seats, PTFE balls, and PTFE diaphragm. It is designed for industrial fluid transfer applications, offering robust construction and compatibility with a wide range of fluids.

Key Features:

• Air-operated double diaphragm pump
• Husky 1590, 1-1/2" NPT
• Aluminum venter section, hardened stainless steel seats, PTFE balls, PTFE 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 industrial fluids including water, wastewater, detergents, motor oil, hydraulic fluid, cutting oil, antifreeze, and asphalt sealer
• Patented high-reliability closed center air valve (online serviceable)
• Epoxy-coated air section for tough environmental conditions
• Robust construction for industrial use
• Ease of maintenance and reliability
• Suitable for continuous duty cycle

Applications:
Industrial fluid transfer, wastewater, chemical processing, oil and lubricant transfer, dust suppression, and general industrial pumping applications

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and safety. Non-genuine parts may compromise pump efficiency and longevity.
• Ensure proper alignment and secure mounting of the pump
• Use appropriate thread sealant for NPT connections
• Check for leaks after installation
• Follow manufacturer’s torque specifications for assembly
• Regularly inspect and maintain diaphragms and seals for wear
• Periodically check and replace diaphragms and seals as needed
• Inspect air valve and bearings for wear
• Keep air supply clean and dry
• Lubricate moving parts as recommended by the manufacturer