The GRACO D51266 Husky 515AC is an air-operated double diaphragm pump featuring a polypropylene (PP) center section, acetal (AC) seats, and Santoprene (SP) balls and diaphragm. It is designed for reliable, low-pulsation fluid transfer in industrial and maintenance applications, suitable for handling a variety of liquids including chemicals and lubricants.

Key Features:

• Air-operated double diaphragm pump
• Husky 515AC, 1/2 in NPT
• PP center section, AC seats, SP balls & diaphragm
• Maximum free flow delivery: 15 gpm (57 lpm)
• Maximum fluid working pressure: 100 psi (7 bar, 0.7 MPa)
• Compatible with a wide range of industrial fluids and chemicals; suitable for use in lubrication and maintenance systems
• Stall-free low pulsation air valve for smooth and rapid changeover
• Reliable performance in demanding environments
• Easy to maintain and service
• Handles solids up to 0.09 in (2.5 mm)
• Maximum pump speed: 400 cpm
• Maximum suction lift: 15 ft (4.5 m) dry
• Maximum ambient operating temperature: 150°F (66°C) for PP center section

Applications:
Ideal for transferring chemicals, lubricants, and other industrial fluids in environments such as mining, agriculture, manufacturing, and maintenance operations. Suitable for applications requiring gentle handling of fluids and resistance to chemical attack.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and compatibility with existing equipment. Non-genuine parts may compromise safety and efficiency.
• Ensure all connections are tight and leak-free before operation
• Use appropriate thread sealant on NPT fittings
• Check diaphragm and ball condition regularly for wear
• Follow manufacturer’s guidelines for air supply and pressure settings
• Install in a location with adequate ventilation and access for maintenance