The GRACO 647059 is an air-operated double diaphragm pump designed for industrial fluid transfer. It features a standard aluminum center section, aluminum seats, Geolast balls, and a TPE diaphragm, making it suitable for handling a variety of liquids including water, antifreeze, and fuel.
Key Features:
Air-Operated Double Diaphragm Pump
Husky 1050, 1" NPT
Standard aluminum center section, aluminum seats, Geolast balls, TPE diaphragm
Maximum free flow delivery: 50 gpm (189 lpm)
Maximum fluid working pressure: 125 psi (8.6 bar, 0.86 MPa)
Industrial fluid transfer applications (water, antifreeze, fuel, etc.)
UL listed (for similar Husky 1050 models; not explicitly stated for 647059)
Stall-free low pulsation air valve for smooth operation
Spring-loaded pilot valves for faster changeover and reduced pulsation
Externally serviceable components
Bolted joint design for even sealing pressure and leak-free operation
Long diaphragm life span compared to competitors
One-piece center section reduces leaks and maintenance frequency
Applications: Industrial fluid transfer, including water, antifreeze, and fuel; suitable for mining, agriculture, and general industrial maintenance
Installation Notes:
Using genuine GRACO parts ensures optimal performance, reliability, and compatibility with existing equipment.
Ensure proper alignment and secure bolting of the center section for leak-free operation
Use recommended air supply and pressure settings for best performance
Regularly inspect and maintain diaphragm and valve components for longevity
Follow manufacturer guidelines for installation and maintenance
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