The GRACO DB2655 Husky 1590 is a 1-1/2" NPT standard air-operated double diaphragm pump constructed with a polypropylene body, aluminum center section, Santoprene (SP) seats, TPE balls, and TPE diaphragm. It is designed for reliable, high-flow fluid transfer in demanding industrial environments.

Key Features:

• Air-operated double diaphragm pump
• Husky 1590, 1-1/2" (38.1 mm) NPT
• Polypropylene body, aluminum center section, Santoprene (SP) seats, TPE balls, TPE diaphragm
• Up to 100 gpm (378 lpm)
• Maximum fluid pressure: 120 psi (0.84 MPa)
• Patented, high-reliability closed center air valve
• Online serviceable air valve
• Epoxy-coated air section for tough environmental conditions
• Lube-free operation
• Fewer parts than industry peers, externally accessible air valve for quick service
• Up to 5 times longer diaphragm life compared to other pumps in its class

Applications:
Industrial fluid transfer, chemical processing, mining, agriculture, and other demanding environments requiring robust, reliable, and portable pumping solutions.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and longevity of the pump.
• Ensure proper alignment and secure mounting of the pump
• Connect air supply and fluid lines according to specifications
• Check for leaks and proper operation after installation
• Regularly inspect and maintain the air valve and diaphragm for optimal performance
• Perform routine checks on the air valve and diaphragm
• Replace worn or damaged parts with genuine GRACO components
• Keep the air section clean and free from debris