The GRACO 651018 is a stainless steel (SS) air-operated double diaphragm pump with a 1-inch (25.4 mm) NPT connection, featuring an aluminum center section, polypropylene (PP) seats, PTFE balls, and a PTFE diaphragm. It is designed for reliable, low-maintenance transfer of a wide range of industrial fluids, including chemicals, oils, and wastewater.

Key Features:

• Air-operated double diaphragm pump
• Husky 1050, 1 in. (25.4 mm) NPT
• Stainless steel (SS) fluid section, aluminum center section, PP seats, PTFE balls, PTFE diaphragm
• Maximum free flow delivery: 50 gpm (189 lpm)
• Maximum fluid working pressure: 125 psi (8.6 bar, 0.86 MPa)
• Compatible with asphalt sealer, antifreeze, detergents, motor oil, hydraulic fluid, cutting oil, water, and wastewater transfer
• Stall-free, low pulsation air valve for smooth and rapid changeover
• One-piece center section eliminates leaks and reduces maintenance
• Reliable performance in demanding industrial environments
• Handles solids up to 1/8 in. (3.2 mm) in size
• Maximum suction lift: 16 ft (4.9 m) dry, 29 ft (8.8 m) wet
• Maximum pump speed: 280 cycles per minute

Applications:
Industrial fluid transfer, including chemicals, oils, wastewater, and other compatible fluids. Suitable for mining, agriculture, manufacturing, and maintenance operations.

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 tight and leak-free before operation
• Use compatible thread sealant on NPT connections
• Follow manufacturer guidelines for air supply and pressure settings
• Regularly inspect diaphragms and seals for wear and replace as needed
• Keep pump and surrounding area clean to prevent contamination