The GRACO 654537 is an air-operated double diaphragm pump designed for high-efficiency fluid transfer. It features a polypropylene center section, end flange, PVDF seats, PTFE balls, and a PTFE overmolded diaphragm, making it suitable for handling a wide range of chemicals and aggressive fluids in industrial applications.

Key Features:

• Air-operated double diaphragm pump
• Husky 15120, 1-1/2 in (38.1 mm) ANSI
• Polypropylene center section, end flange, PVDF seats, PTFE balls, PTFE overmolded diaphragm
• 120 gpm (454 lpm)
• 125 psi (8.6 bar, 0.86 MPa)
• Compatible with a wide range of chemicals and aggressive fluids
• Stall-free low pulsation air valve for smooth and rapid changeover
• One-piece center section eliminates leaks and reduces maintenance
• Up to 40% more efficient than comparable pumps
• Up to 5 times longer diaphragm life compared to other air-operated diaphragm pumps
• Lube-free operation
• Compact, portable size
• Available in polypropylene and PVDF

Applications:
Ideal for industrial fluid transfer, chemical processing, and applications requiring reliable, leak-free pumping of aggressive or corrosive fluids.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and safety, and helps maintain warranty coverage.
• Ensure proper alignment of the pump with piping
• Use appropriate gaskets and seals for chemical compatibility
• Follow manufacturer guidelines for air supply and pressure settings
• Regularly inspect diaphragms and seals for wear and replace as needed
• Perform routine inspections for leaks and wear
• Replace diaphragms and seals according to manufacturer recommendations
• Keep air supply clean and dry to prevent contamination