The GRACO DB4346 Husky 1590 S/S is an air-operated double diaphragm pump designed for industrial fluid transfer. It features a stainless steel fluid section, aluminum center section, stainless steel seats, hardened stainless steel balls, and a Santoprene diaphragm. This pump is engineered for reliable, high-volume transfer of a wide range of fluids, including water, wastewater, detergents, oils, and more, in demanding environments.

Key Features:

• Pneumatic (Air-Operated) Double Diaphragm Pump
• Husky 1590 S/S, 1-1/2" NPT
• Stainless steel fluid section, aluminum center section, stainless steel seats, hardened stainless steel balls, Santoprene diaphragm
• Maximum flow rate: 100 GPM (378.5 LPM)
• Maximum fluid/air pressure: 120 psi (0.8 MPa)
• Compatible with a wide range of fluids including water, wastewater, detergents, oils, antifreeze, hydraulic fluid, cutting oil, and asphalt sealer
• ATEX, CE
• Patented high-reliability closed center air valve (online serviceable)
• Epoxy-coated air section for tough environments
• Up to 5 times longer diaphragm life compared to other pumps in its class
• Self-priming, dry-run capable
• Handles solids up to 0.1875" (4.8 mm)
• Maximum operating temperature: 150°F (65.5°C)
• Maximum cycle rate: 200 CPM
• Maximum suction lift: 20 ft (6.1 m) dry

Applications:
Industrial fluid transfer, water and wastewater management, chemical processing, oil and lubricant transfer, asphalt sealer application, and general industrial pumping tasks.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and safety. Non-genuine parts may compromise pump efficiency and longevity.
• Ensure all connections are tight and leak-free before operation
• Use appropriate thread sealant for NPT connections
• Install pump on a stable, level surface
• Check air supply for correct pressure and cleanliness
• Inspect diaphragms and balls regularly for wear and replace as needed
• Follow manufacturer’s recommended maintenance schedule