The GRACO 651875 Husky 1050 is a stainless steel air-operated double diaphragm pump designed for industrial fluid transfer applications. It is engineered for reliability and versatility, suitable for handling a wide range of fluids including water, oils, and chemicals. The pump features a robust construction with a stainless steel fluid section, aluminum center section, and Santoprene diaphragms and balls for enhanced chemical resistance and durability[2][4][5].

Key Features:

• Air-Operated Double Diaphragm Pump
• Husky 1050, 1" (25.4 mm) NPT
• Stainless steel fluid section, aluminum center section, Santoprene diaphragms and balls
• Maximum flow rate: 42–50 GPM (varies by configuration; 50 GPM is typical for standard models)[2][5]
• Maximum fluid working pressure: 125 psi (8.6 bar, 0.86 MPa)[1][5]
• Compatible with antifreeze, detergents, motor oil, hydraulic fluid, cutting oil, water, and wastewater transfer[5]
• UL listed[3]
• Stall-free low pulsation air valve for smooth and rapid changeover[3]
• Robust construction for reliability and long service life
• Easy maintenance with accessible components
• Handles solids up to 1/8 in. (3.2 mm) in size[1][5]
• Maximum cycle rate: 280 CPM[1][5]
• Maximum suction lift: 16 ft (4.9 m) dry, 29 ft (8.8 m) wet[1]

Applications:
Industrial fluid transfer, including water, oils, chemicals, antifreeze, detergents, motor oil, hydraulic fluid, cutting oil, and wastewater transfer[5]

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and safety. Non-genuine parts may compromise pump efficiency and longevity.
• Ensure proper alignment and secure mounting of the pump
• Use appropriate thread sealant on NPT connections
• Verify air supply is clean and dry to prevent contamination
• Check for leaks after installation and during initial operation
• Follow manufacturer’s recommendations for diaphragm and ball replacement intervals
• Regularly inspect diaphragms, balls, and seats for wear
• Lubricate moving parts as specified in the manual
• Monitor air consumption and flow rate for signs of wear or blockage
• Store spare parts for quick maintenance and minimal downtime