The GRACO 651009 is a 1-inch (25.4 mm) NPT air-operated double diaphragm pump with a stainless steel fluid section, aluminum center section, stainless steel seats, PTFE balls, and PTFE diaphragm. It is designed for industrial fluid transfer applications, offering reliable, leak-resistant performance and compatibility with a wide range of fluids.

Key Features:

• Air-operated double diaphragm pump
• Husky 1050, 1 in. (25.4 mm) NPT
• Stainless steel fluid section, aluminum center section, stainless steel seats, PTFE balls, PTFE diaphragm
• Maximum fluid flow: 50 gpm (189 lpm)
• Maximum fluid discharge pressure: 125 psi (8.6 bar, 0.86 MPa)
• Industrial fluids, compatible with a wide range of materials including aluminum, polypropylene, conductive polypropylene, PVDF, stainless steel, and hastelloy
• Stall-free, low pulsation air valve for smooth and rapid changeover
• One-piece center section eliminates leaks and reduces maintenance
• Up to 5 times longer diaphragm life compared to other double diaphragm pumps in its class
• Spring-loaded, externally serviceable pilot valves for faster changeover and reduced pulsation
• 30% more efficient than the market leader
• 20% increase in fluid flow compared to the Husky 1040

Applications:
Industrial fluid transfer, including handling of asphalt sealer, antifreeze, and other compatible fluids

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and compatibility with existing equipment.
• Ensure proper alignment and secure mounting of the pump
• Use appropriate fittings and hoses rated for the intended pressure and fluid
• Follow manufacturer guidelines for air supply and exhaust port connections
• Regularly inspect and maintain diaphragms, balls, and seals for wear and leaks
• Refer to the manual for specific installation and maintenance procedures