The GRACO Husky 1590 DC4377 is a double diaphragm pump with a stainless steel (S/S) fluid section, aluminum center section, stainless steel seats, and Buna-N balls and diaphragm. It is designed for high-flow, high-pressure industrial fluid transfer applications, including handling abrasive, viscous, or corrosive fluids.

Key Features:

• Air-operated double diaphragm pump
• Husky 1590, 1-1/2" NPT
• Stainless steel fluid section, aluminum center section, stainless steel seats, Buna-N balls and 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, including abrasive, viscous, and corrosive liquids
• Remote air valve operation
• 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

Applications:
Industrial fluid transfer, including abrasive, viscous, or corrosive liquids; suitable for mining, agriculture, chemical processing, and wastewater management

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and safety in demanding industrial environments.
• Ensure proper alignment and secure mounting of the pump
• Use appropriate thread sealant for NPT connections
• Verify compatibility of pump materials with the fluid being transferred
• Regularly inspect and maintain diaphragms, balls, and air valve for wear and proper function
• Follow GRACO’s recommended maintenance schedule