The GRACO D51277 Husky 515 is an air-operated double diaphragm pump featuring a polypropylene (PP) center section, AC seats, BN (Buna-N) balls, and BN diaphragm. It is designed for reliable, smooth transfer of a wide range of fluids in industrial applications.

Key Features:

• Air-operated double diaphragm pump
• Husky 515, 1/2 in NPT standard pump
• Polypropylene (PP) center section, AC seats, BN (Buna-N) balls, BN diaphragm
• 15 GPM (57 LPM)
• 100 PSI (7 bar, 0.7 MPa)
• Compatible with antifreeze, detergent, resin, polymer, motor oil, gear oil, hydraulic fluid, automatic transmission fluid, cutting oil, and water
• Center and end porting options
• Easy-to-service air valve and ball checks
• Split manifold option
• Reliable air valve
• Runs at less than 85 dBa with remote muffler capability
• Maximum ambient operating temperature: 180°F (82°C) for carbon steel, 150°F (66°C) for PP
• Maximum pump speed: 400 cycles per minute
• Maximum suction lift: 15 ft (4.5 m) dry
• Maximum size pumpable solids: 0.09 in (2.5 mm)

Applications:
Transfer of industrial fluids such as oils, chemicals, detergents, and water in mining, agriculture, manufacturing, and maintenance environments.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and compatibility with existing equipment.
• Ensure correct alignment of pump components during assembly
• Use appropriate thread sealant for NPT connections
• Check diaphragm and ball condition before installation
• Follow manufacturer-recommended maintenance intervals
• Install remote muffler for reduced noise if required