The GRACO 647639 Husky 1050 is an air-operated double diaphragm pump with a remote aluminum center section, acetal seats, Santoprene balls, and Santoprene diaphragm. It is designed for reliable, leak-resistant transfer of fluids such as oils, fuels, antifreeze, and water in industrial and vehicle service applications.

Key Features:

• Air-operated double diaphragm pump
• Husky 1050, 1" BSPT
• Aluminum center section, acetal seats, Santoprene balls, Santoprene diaphragm
• Up to 50 gpm (189 lpm)
• Maximum fluid working pressure: 125 psi (8.6 bar, 0.86 MPa)
• Compatible with a wide range of fluids including oils, fuels, antifreeze, and water
• UL listed (for some configurations; confirm for this specific part number)
• Stall-free low pulsation air valve for smooth and rapid changeover
• One-piece center section eliminates leaks and reduces maintenance
• Remote center section for flexible installation
• Up to 5 times longer diaphragm life compared to other double diaphragm pumps in its class
• 30% more efficient than market leader

Applications:
Oil evacuation, oil transfer, water, antifreeze, and fuel transfer in industrial, vehicle service, and maintenance environments

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and safety. Non-genuine parts may compromise pump integrity and void warranties.
• Install a fluid pressure relief valve at the pump outlet to prevent overpressurization and rupture of the pump or hose
• Ensure all connections are tight and leak-free
• Follow manufacturer guidelines for air supply and fluid compatibility
• Regularly inspect diaphragms, seats, and balls for wear and replace as needed