The GRACO 652990 is a stainless steel (SS) air-operated double diaphragm pump with a polypropylene (PP) center section and Santoprene (SP) seats. It is designed for high-flow, heavy-duty fluid transfer applications in industrial environments, offering robust performance and chemical resistance.

Key Features:

• Air-operated double diaphragm pump
• Husky 3300, 3-inch ports
• Stainless steel body, polypropylene center section, Santoprene diaphragms, seats, and balls, PTFE manifold and seat seals
• Up to 280–300 GPM (varies by configuration)
• Maximum fluid pressure: 0.7 MPa (100 psi)
• Compatible with a wide range of industrial fluids, especially those requiring chemical resistance
• Stall-free low pulsation air valve for smooth, rapid changeover
• One-piece center section eliminates leaks and reduces maintenance
• Up to 5 times longer diaphragm life compared to other air-operated diaphragm pumps
• Heavy-duty construction for demanding applications
• Modular stall-resistant air valve design
• Expanded material offering for handling numerous applications

Applications:
Ideal for high-flow, heavy-duty fluid transfer in industries such as mining, agriculture, chemical processing, and manufacturing. Suitable for handling abrasive, corrosive, or viscous fluids.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and safety. Non-genuine parts may compromise pump efficiency and longevity.
• Ensure all connections are secure and leak-free before operation
• Follow manufacturer guidelines for air supply and fluid compatibility
• Regularly inspect diaphragms, seats, and seals for wear and replace as needed
• Use appropriate tools and safety equipment during installation and maintenance
• Perform routine inspections and maintenance as recommended by GRACO
• Replace diaphragms and seals at recommended intervals to prevent leaks and downtime
• Keep the pump and surrounding area clean to avoid contamination