The GRACO DB3346 is a double diaphragm pump designed for high-flow, high-pressure transfer of fluids in industrial applications. It features an aluminum center section, stainless steel seats, hardened stainless steel balls, and a Santoprene (SP) diaphragm. This pump is intended for use in demanding environments where reliability and resistance to wear are essential.

Key Features:

• Air-operated double diaphragm pump
• Husky 1590, 1-1/2 in. (38.1 mm) NPT
• Aluminum center section, stainless steel seats, hardened stainless steel balls, Santoprene (SP) diaphragm
• Maximum free flow delivery: 100 gpm (378.5 lpm)
• Maximum fluid working pressure: 120 psi (8.4 bar, 0.84 MPa)
• Compatible with a wide range of industrial fluids; suitable for use with aggressive chemicals and slurries
• Patented, high-reliability closed center air valve
• Online serviceable air valve for easy maintenance
• Epoxy-coated air section for tough environmental conditions
• Lube-free operation
• Externally accessible air valve for quick servicing without uninstalling the pump
• Up to 5 times longer diaphragm life compared to other air-operated diaphragm pumps in its class
• Fewer parts than industry peers

Applications:
Ideal for transferring fluids in mining, agriculture, chemical processing, and other industrial settings where robust, reliable pumping is required. Suitable for handling slurries, chemicals, and abrasive fluids.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and compatibility with existing equipment.
• Ensure proper alignment of inlet and outlet connections (1-1/2 in. NPT or BSP or ANSI-Flange)
• Check for correct air supply and pressure settings before operation
• Regularly inspect and maintain the air valve and diaphragm for wear and proper function
• Follow manufacturer guidelines for installation and maintenance to maximize pump life and efficiency