The GRACO DB2311 Husky 1590 is a polypropylene air-operated double diaphragm pump designed for high-flow, reliable transfer of fluids in industrial environments. It is constructed from polypropylene for chemical resistance and durability, and is intended for use in applications requiring robust, leak-free fluid handling within GRACO equipment.

Key Features:

• Air-operated double diaphragm pump
• Husky 1590, 1-1/2 in. ANSI end-porting
• Polypropylene (PP), with options for aluminum, stainless steel, or PVDF
• 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 fluids, including chemicals, water, and slurries; suitable for use with PTFE, Santoprene, Buna-N, TPE, Fluoroelastomer, and Geolast diaphragms
• Patented, high-reliability closed center air valve (online serviceable)
• Epoxy-coated air section for tough environmental conditions
• Lube-free operation
• Easy-to-service air valve and ball checks
• Compact, portable size for high flow
• Maximum solids handling: 0.19 in (4.8 mm)
• Maximum operating temperature: 150°F (65.5°C)

Applications:
Ideal for transferring aggressive chemicals, water, slurries, and other industrial fluids in mining, agriculture, manufacturing, and maintenance operations. Suitable for environments requiring chemical resistance and robust, leak-free performance.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and compatibility with existing equipment, reducing downtime and maintenance costs.
• Ensure proper alignment of inlet and outlet connections (1-1/2 in. NPT, BSP, or ANSI flange)
• Check for correct diaphragm and seal material compatibility with the fluid being pumped
• Follow manufacturer guidelines for air supply and pressure settings
• Regularly inspect and service the air valve and ball checks for optimal performance
• Use appropriate lifting and handling equipment due to pump weight (polypropylene model: approx. 35 lb)