The GRACO DBP388 is a stainless steel air-operated double diaphragm (AODD) metal pump with an aluminum air motor, standard air valve, 316 stainless steel seat, and fluoroelastomer ball and diaphragm. It is designed for reliable, high-flow transfer of fluids in demanding industrial environments, offering robust construction and compatibility with a wide range of fluids.

Key Features:

• Air-Operated Double Diaphragm (AODD) Pump
• Husky 1590, 1.5" (38.1 mm) ANSI end-porting
• Stainless steel fluid section, aluminum air motor, 316 stainless steel seat, fluoroelastomer ball and 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 harsh environments
• Patented, high-reliability closed center air valve
• Online serviceable air valve
• Epoxy-coated air section for tough environmental conditions
• Compact, portable size
• Lube-free operation
• High flow in a compact design

Applications:
Ideal for transferring fluids in industries such as mining, agriculture, chemical processing, and general industrial applications where reliability and resistance to harsh conditions are required.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and safety. Non-genuine parts may compromise pump integrity and void warranties.
• Ensure proper alignment of pump and piping
• Use appropriate gaskets and seals for the fluid being handled
• Check air supply for correct pressure and cleanliness
• Follow manufacturer’s torque specifications for assembly
• Regularly inspect and maintain air valve and diaphragms for wear
• Periodically check and replace diaphragms, balls, and seats as needed
• Keep air supply clean and dry
• Inspect for leaks and unusual noises during operation
• Follow the maintenance schedule outlined in the manual