The GRACO D51977 Husky 515Acetal is an air-operated double diaphragm pump featuring a polypropylene center section, polypropylene seats, Buna-N balls, and Buna-N diaphragm. It is designed for reliable, leak-free transfer of a wide range of fluids in industrial applications, including those requiring chemical resistance and durability.

Key Features:

• Air-operated double diaphragm pump
• Husky 515, 1/2" NPT
• Acetal body, polypropylene center section, polypropylene seats, Buna-N balls, Buna-N diaphragm
• Up to 15 gpm (56.7 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 supply
• Compatible with a wide range of fluids, including chemicals, due to material selection
• Stall-free low pulsation air valve for smooth and rapid changeover
• Bolt-through fluid cover design eliminates leaks and enhances safety
• No mechanical seals to prevent 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 to pump multiple fluids without mixing
• Reliable air valve for years of dependable performance

Applications:
Ideal for transferring chemicals, solvents, and other industrial fluids in manufacturing, mining, agriculture, and maintenance environments. Suitable for applications requiring chemical resistance and leak-free operation.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and safety. Non-genuine parts may compromise pump integrity and void warranties.
• Ensure all connections are tight and leak-free before operation
• Use appropriate thread sealant for NPT connections
• Install remote muffler for reduced noise if required
• Follow GRACO’s recommended maintenance schedule for air valve and ball checks
• Consult the equipment manual for specific installation and maintenance procedures