The GRACO 647526 is an air-operated double diaphragm pump featuring an aluminum center section, Geolast seats, Geolast balls, and a Geolast diaphragm. It is designed for reliable transfer of fluids such as water, antifreeze, and fuel in industrial applications, offering robust construction and compatibility with a range of fluids.

Key Features:

• Air-Operated Double Diaphragm Pump
• Husky 1050, 1" NPT
• Aluminum center section, Geolast seats, Geolast balls, Geolast diaphragm
• Maximum free flow delivery: 50 gpm (189 lpm)
• Maximum fluid working pressure: 125 psi (8.6 bar, 0.86 MPa) for metal pumps (aluminum, stainless steel, Hastelloy); some configurations may have lower ratings (e.g., 100 psi for certain plastic/TPE models)
• Suitable for water, antifreeze, fuel, and other compatible fluids; not for use with incompatible chemicals or highly abrasive media
• Robust aluminum construction for durability
• Geolast elastomer components for chemical resistance and long service life
• Air-operated for safe use in hazardous environments
• Capable of handling solids up to 1/8" (3.2 mm)
• Easy maintenance and repair with modular design
• Reliable performance in demanding industrial environments

Applications:
Industrial fluid transfer, including water, antifreeze, and fuel; suitable for mining, agriculture, and general industrial maintenance applications.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, safety, and longevity of the pump. Non-genuine parts may compromise reliability and void warranties.
• Ensure all connections are tight and leak-free before operation
• Use appropriate thread sealant on NPT connections
• Mount the pump securely to minimize vibration and noise
• Follow GRACO’s recommended maintenance schedule for diaphragm and ball inspection/replacement
• Refer to the pump’s manual for specific installation and maintenance procedures