The GRACO DGG977 is a heavy-duty, air-operated double diaphragm pump featuring an aluminum center section, polypropylene seats, Buna-N balls, and Buna-N diaphragms. It is engineered for reliable, long-lasting performance in demanding industrial applications, such as transferring fluids in mining, agriculture, and manufacturing environments.

Key Features:

• Air-operated double diaphragm pump
• Husky 2150, 2" BSP
• Aluminum center section, polypropylene seats, Buna-N balls, Buna-N diaphragms
• Up to 150 gpm (568 lpm)
• Up to 120 psi (8.4 bar, 0.84 MPa)
• Compatible with a wide range of industrial fluids and slurries; suitable for use in harsh environments
• Extended remote configuration for flexible installation
• Stall-free, low pulsation air valve for smooth operation
• Lube-free operation
• Epoxy-coated air section for durability in tough conditions
• Externally accessible air valve for easy maintenance
• Fewer parts than industry peers, reducing downtime and service complexity
• Engineered for heavy-duty, long-lasting performance

Applications:
Ideal for transferring fluids and slurries in mining, agriculture, manufacturing, and other industrial settings where reliability and durability are critical.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, longevity, and compatibility with existing equipment.
• Ensure proper alignment and secure mounting to prevent vibration and leaks
• Use appropriate fittings and hoses rated for the intended pressure and fluid type
• Follow manufacturer guidelines for air supply and exhaust requirements
• Regularly inspect and maintain diaphragms, balls, and seals to prevent premature wear
• Consult the equipment manual for detailed installation and maintenance procedures