The GRACO DT2666 is a 1-1/2" NPT air-operated double diaphragm pump constructed with a polypropylene body, stainless steel center section, and Santoprene seats, balls, and diaphragm. It is designed for high-flow, reliable transfer of a wide range of fluids, including abrasive and corrosive liquids, in industrial and maintenance applications.

Key Features:

• Air-operated double diaphragm pump
• Husky 1590, 1-1/2" NPT
• Polypropylene body, stainless steel center section, Santoprene seats, balls, and diaphragm
• Maximum flow rate: 100 gpm (378.5 lpm)
• Maximum discharge pressure: 120 psi (8.4 bar, 0.84 MPa)
• Compatible with a wide range of fluids, including abrasive and corrosive liquids
• Lube-free operation
• Epoxy-coated air section for tough environmental conditions
• Externally accessible air valve for easy maintenance
• Fewer parts than industry peers
• Up to 5 times longer diaphragm life compared to similar pumps
• Available in ATEX configuration (noted for other variants, not explicitly for DT2666)

Applications:
Ideal for transferring fluids in industrial, mining, agricultural, and maintenance environments. Suitable for handling abrasive, corrosive, and viscous liquids.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and compatibility with existing equipment.
• Ensure proper alignment and secure mounting of the pump
• Use appropriate thread sealant for NPT connections
• Check for leaks after installation
• Regularly inspect and maintain the air valve and diaphragm for optimal performance
• Follow manufacturer’s guidelines for installation and maintenance
• Use only recommended replacement parts
• Keep the pump clean and free from debris
• Monitor for signs of wear and replace components as needed