The GRACO DB3811 Husky 1590 is an air-operated double diaphragm pump with an aluminum center section, designed for industrial fluid transfer. It features Flouroelastomer 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 1590, 1-1/2" NPT
• Aluminum center section, Flouroelastomer 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 chemicals, oils, water, and wastewater
• High flow in a compact, portable size
• Lube-free operation
• Epoxy-coated air section for tough environmental conditions
• Easy-to-service air valve and ball checks
• Patented, high-reliability closed center air valve

Applications:
Industrial fluid transfer, chemical processing, oil and lubricant handling, water and wastewater transfer, and other demanding industrial applications

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and compatibility with existing equipment.
• Ensure proper alignment of inlet and outlet connections
• Use appropriate thread sealant for NPT connections
• Check for leaks after installation
• Follow manufacturer guidelines for air supply and pressure settings
• Regularly inspect and maintain diaphragms and seals for optimal performance