The GRACO 25C656 Husky 1590 is a stainless steel air-operated double diaphragm pump designed for reliable fluid transfer in demanding industrial environments. It features a vertical outlet port, stainless steel center section, stainless steel seats, PTFE balls, and PTFE overmolded diaphragms, making it suitable for handling a wide range of fluids including corrosive and abrasive media.

Key Features:

• Air-Operated Double Diaphragm Pump
• Husky 1590, 1.5 Inch, 90 GPM (341 LPM)
• Stainless Steel (316 SST) center section, seats, and air valve; PTFE balls and diaphragms
• 90 GPM (341 LPM)
• Maximum fluid working pressure: 120 psi (8.4 bar, 0.84 MPa)
• Designed for integration with GRACO fluid transfer systems and compatible with a wide range of industrial fluids
• ATEX certified for use in explosive atmospheres
• Patented, high-reliability closed center air valve
• Online serviceable air valve for easy maintenance
• Epoxy-coated air section for harsh environments
• Quiet operation (<85 dBA) with remote muffler capability
• No seals to leak or fail
• Externally accessible air valve for quick servicing without uninstalling the pump
• Up to 5 times longer diaphragm life compared to similar pumps

Applications:
Ideal for transferring corrosive, abrasive, or viscous fluids in industries such as chemical processing, mining, agriculture, and manufacturing. Suitable for applications requiring reliable, leak-free, and low-maintenance fluid handling.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and safety. Non-genuine parts may compromise pump integrity and void warranties.
• Ensure proper alignment of inlet and outlet ports
• Use appropriate fittings and hoses rated for the intended pressure and fluid
• Follow all safety instructions in the manual
• Regularly inspect and maintain the air valve and diaphragms for optimal performance
• Install in a location that allows easy access for maintenance