The GRACO 647109 is an air-operated double diaphragm pump designed for reliable transfer of fluids such as water, antifreeze, and fuel. It features an aluminum center section, stainless steel seats, PTFE balls, and a PTFE diaphragm for enhanced chemical resistance and durability.

Key Features:

• Air-operated double diaphragm pump
• Husky 1050, 1 in. (25.4 mm) BSPT
• Aluminum center section, stainless steel 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)
• Suitable for water, antifreeze, fuel, and compatible with a wide range of industrial fluids
• Stall-free low pulsation air valve for smooth and rapid changeover
• One-piece center section eliminates leaks and reduces maintenance
• Longer diaphragm life due to PTFE diaphragm
• Reliable performance in demanding environments

Applications:
Used for transferring water, antifreeze, fuel, and other compatible fluids in industrial, automotive, and maintenance applications.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and safety. Non-genuine parts may compromise pump efficiency and longevity.
• Ensure proper alignment of pump and piping to prevent leaks and undue stress
• Use appropriate fittings and seals for the intended fluid and pressure
• Follow manufacturer guidelines for air supply and fluid compatibility
• Regularly inspect and maintain diaphragms and seals for wear
• Periodically check for leaks and tighten connections as needed
• Replace diaphragms and seals according to maintenance schedule
• Use clean, dry air supply to prevent contamination and wear