The GRACO D5N977 is a Husky 515 air-operated double diaphragm pump with a polypropylene (PP) construction. It is designed for reliable, leak-free transfer of fluids in industrial and manufacturing environments, offering smooth operation and easy maintenance.

Key Features:

• Air-operated double diaphragm pump
• Husky 515, 1/2 in NPT
• Polypropylene (PP)
• Up to 15 gpm (56.7 lpm)
• Designed for use with a wide range of industrial fluids; split manifold option available for pumping multiple fluids without mixing
• 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 cause fluid leaks or failures
• Runs quietly at less than 85 dBa with remote muffler capability
• Easy-to-service air valve and ball checks
• Fully-groundable acetal model available
• Reliable air valve for years of dependable performance

Applications:
Ideal for transferring a variety of fluids in industrial, manufacturing, and maintenance applications, including lubrication, chemical transfer, and process fluids.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and safety, and maintains warranty coverage.
• Ensure proper alignment and secure mounting of the pump
• Use recommended fittings and hoses for the intended fluid and pressure
• Follow all safety guidelines and local regulations
• Regularly inspect and maintain air valve and ball checks for optimal performance
• Periodically check for leaks and wear
• Clean and inspect diaphragms and ball checks as recommended
• Use only genuine replacement parts for repairs