The GRACO DBP346 Husky 1590 is a stainless steel air-operated double diaphragm (AODD) pump with an aluminum air motor, standard air valve, 316 stainless steel seat, 440C stainless steel ball, and Santoprene diaphragm. It is designed for robust, reliable fluid transfer in demanding industrial environments.

Key Features:

• Air-Operated Double Diaphragm (AODD) Pump
• Husky 1590, 1-1/2 inch (38.1 mm) ANSI end-porting
• Stainless steel (316 S/S seat, 440C S/S ball), aluminum air motor, Santoprene 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 industrial fluids, not approved for explosive atmospheres
• High flow in a compact, portable size
• Lube-free operation
• Epoxy-coated air section for tough environmental conditions
• Easy-to-service air valve and ball checks
• Patented, high-reliability closed center air valve
• Online serviceable air valve

Applications:
Ideal for transferring a variety of industrial fluids, including those with small solids (up to 0.19 in/4.8 mm), in sectors such as mining, agriculture, chemical processing, and general manufacturing.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and safety. Non-genuine parts may compromise pump efficiency and longevity.
• Relieve all pressure before servicing or installing
• Ensure proper alignment of inlet and outlet connections (1-1/2 inch NPT, BSP, or ANSI flange)
• Use appropriate tools for disassembly and reassembly (Torx T20 screwdriver, 7 mm socket wrench, needle-nose pliers, O-ring pick)
• Apply lithium base grease (or equivalent) as recommended for air valve maintenance
• Refer to the GRACO Husky 1590 manual for detailed installation and maintenance procedures