The GRACO DB4347 Husky 1590 is a stainless steel air-operated double diaphragm pump with an aluminum center section, stainless steel seats, hardened stainless steel balls, and a Buna-N diaphragm. It is designed for industrial fluid transfer applications, offering robust construction and reliable performance in demanding environments.

Key Features:

• Air-operated double diaphragm pump
• Husky 1590, 1-1/2" NPT
• Stainless steel fluid section, aluminum center section, stainless steel seats, hardened stainless steel balls, Buna-N diaphragm
• Maximum free flow delivery: 100 gpm (378.5 lpm)
• Maximum fluid working pressure: 120 psi (8.4 bar, 0.84 MPa)
• Industrial fluids, compatible with a wide range of chemicals and abrasive materials
• Patented, high-reliability closed center air valve
• Online serviceable air valve and ball checks
• Epoxy-coated air section for tough environmental conditions
• Lube-free operation
• Compact, portable size
• Easy-to-service design
• Up to 5 times longer diaphragm life compared to other air-operated diaphragm pumps in its class
• Fewer parts than industry peers, air valve externally accessible

Applications:
Industrial fluid transfer, handling chemicals, abrasive materials, and general process liquids in mining, agriculture, manufacturing, and wastewater treatment

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and compatibility with existing equipment.
• Ensure proper alignment of inlet and outlet connections
• Use appropriate thread sealant for NPT connections
• Check for leaks after installation
• Follow manufacturer guidelines for air supply and pressure settings
• Regularly inspect and maintain air valve and diaphragm for optimal performance