The GRACO DB3355 is an air-operated double diaphragm pump with an aluminum center section, stainless steel seats, TPE balls, and TPE diaphragm. It is designed for high-flow, reliable transfer of a wide range of fluids in industrial and maintenance applications.

Key Features:

• Air-Operated Double Diaphragm Pump
• Husky 1590, 1-1/2" NPT
• Aluminum center section, stainless steel seats, TPE balls, TPE 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 fluids, including water, chemicals, and slurries; suitable for industrial, mining, and agricultural applications
• Patented, high-reliability closed center air valve
• Epoxy-coated air section for tough environments
• Lube-free operation
• Easy-to-service air valve and ball checks
• Compact, portable size for high flow

Applications:
Ideal for transferring water, chemicals, and slurries in industrial, mining, and agricultural settings. Suitable for use in harsh environments and for handling fluids with solids up to 0.19 in (4.8 mm) in size.

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" NPT)
• Check for leaks after installation
• Follow manufacturer guidelines for air supply and pressure settings
• Regularly inspect and maintain diaphragms, balls, and seats for wear