The GRACO D42277 Husky 515 is a remote air-operated double diaphragm pump with a polypropylene center section, acetal seats, Buna-N balls, and Buna-N diaphragm. It is designed for reliable, leak-free transfer of a wide range of industrial fluids, including chemicals, oils, and water-based solutions, within GRACO equipment and compatible systems.

Key Features:

• Air-operated double diaphragm pump
• Husky 515, 1/2" BSP
• Polypropylene center section, acetal seats, Buna-N balls, Buna-N diaphragm
• Up to 15 gpm (57 lpm)
• Maximum fluid working pressure: 100 psi (7 bar, 0.7 MPa); operates on as little as 20 psi (1.4 bar, 0.14 MPa) air input
• Antifreeze, detergents, resin, polymers, motor oil, grease & oil, hydraulic fluid, transmission fluid, cutting oil, water, wastewater treatment, ink
• Stall-free low pulsation air valve for smooth, rapid changeover
• Bolt-through fluid cover design eliminates leaks and enhances safety
• No mechanical seals to cause fluid leaks or failures
• Runs quietly at less than 85 dBa with remote muffler capability
• Easy-to-service air valve and ball checks
• Split manifold option available for pumping multiple fluids without mixing
• Reliable air valve for years of dependable performance

Applications:
Industrial fluid transfer, including chemicals, oils, water-based solutions, and wastewater treatment. Suitable for use in mining, agriculture, manufacturing, and maintenance operations.

Installation Notes:

• Using genuine GRACO parts ensures compatibility, reliability, and safety. Non-genuine parts may compromise performance and void warranties.
• Always use compatible, liquid thread sealant on all male threads and tighten all connections firmly to avoid air or fluid leaks
• Follow all safety instructions and warnings in the equipment manual
• Ensure proper grounding for acetal models if required
• Regularly inspect and maintain air valve and ball checks for optimal performance