The GRACO 647206 is a 1-inch NPT air-operated double diaphragm pump with an aluminum center section, Buna-N (nitrile) seats, polychloroprene (neoprene) standard balls, and a polychloroprene overmold diaphragm. It is designed for reliable transfer of fluids, including those with small solids, in industrial applications.

Key Features:

• Air-operated double diaphragm pump
• Husky 1050 AL, 1" NPT
• Aluminum center section, Buna-N seats, polychloroprene balls, polychloroprene overmold diaphragm
• Maximum fluid flow rate: 189 L/min (50 gpm)
• Maximum fluid pressure: 8.6 bar (approx. 125 psi, though some sources list 7 bar/100 psi for similar models; 8.6 bar is most specific to this configuration)
• Compatible with a wide range of industrial fluids, including water, antifreeze, and fuel; handles solids up to 3.2 mm
• UL listed (for similar Husky 1050 models; not explicitly stated for this part number)
• Stall-free, low pulsation air valve for smooth operation
• Rapid changeover for efficient fluid transfer
• Robust construction for long service life
• Easy maintenance and repair
• Handles abrasive and viscous fluids

Applications:
Industrial fluid transfer, including water, antifreeze, fuel, and fluids with small solids; suitable for mining, agriculture, and general industrial use.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and safety. Non-genuine parts may void warranties and reduce pump lifespan.
• Ensure proper alignment of inlet and outlet connections
• Use appropriate thread sealant for NPT connections
• Check for leaks after installation
• Follow manufacturer’s torque specifications for assembly
• Regularly inspect and maintain diaphragms and seats for wear