The GRACO 647057 is a 1-inch NPT air-operated double diaphragm pump with a standard aluminum center section, aluminum seats, Santoprene balls, and Geolast diaphragm. It is designed for industrial fluid transfer applications, handling a variety of compatible fluids such as antifreeze, detergents, motor oil, hydraulic fluid, cutting oil, and water/wastewater. The robust construction ensures reliable performance in demanding environments.

Key Features:

• Air-Operated Double Diaphragm Pump
• Husky 1050, 1" NPT
• Standard aluminum center section, aluminum seats, Santoprene balls, Geolast diaphragm
• Maximum 50 GPM (189 LPM)
• Maximum 125 PSI (0.86 MPa)
• Antifreeze, detergents, motor oil, hydraulic fluid, cutting oil, water/wastewater
• Stall-free low pulsation air valve for smooth operation
• Spring-loaded pilot valves for faster changeover and reduced pulsation
• Externally serviceable components
• One-piece center section eliminates leaks and reduces maintenance
• Bolted joint design for even sealing pressure and leak-free operation
• Long diaphragm life (up to 5x longer than competitors)

Applications:
Industrial fluid transfer, including antifreeze, detergents, motor oil, hydraulic fluid, cutting oil, and water/wastewater applications

Installation Notes:

• Genuine GRACO parts ensure optimal performance, reliability, and compatibility with existing equipment. Using non-genuine parts may void warranties and reduce pump lifespan.
• Ensure all connections are tight and properly sealed to prevent leaks
• Follow manufacturer guidelines for air supply and fluid compatibility
• Regularly inspect diaphragms, seats, and balls for wear and replace as needed
• Use appropriate thread sealant on NPT connections
• Install pump in a location that allows easy access for maintenance