The GRACO 659816 is a Husky 3300S-E stainless steel electric-operated double diaphragm (EODD) pump, designed for high-efficiency fluid transfer in demanding industrial environments. It features a stainless steel body, PTFE diaphragms and balls, and an aluminum center section, making it suitable for handling a wide range of chemicals and abrasive fluids.

Key Features:

• Electric-Operated Double Diaphragm (EODD) Pump
• 3300S-E, 3"
• Stainless steel body, PTFE diaphragms and balls, aluminum center section
• Up to 220 gpm (varies by configuration; some sources list up to 300 gpm for similar models, but 220 gpm is specified for this electric variant)
• Designed for integration with GRACO industrial fluid handling systems
• Stall-free low pulsation air valve (for air-operated variants; electric models focus on energy efficiency)
• One-piece center section for leak reduction and easier maintenance
• Up to 80% reduction in energy usage compared to air diaphragm pumps
• Pump replacables last up to 5x longer compared to other brands
• Heavy-duty construction for reliability and long service life

Applications:
Ideal for transferring chemicals, abrasive fluids, and slurries in industries such as mining, agriculture, manufacturing, and wastewater treatment. Suitable for applications requiring high flow rates and resistance to corrosive or abrasive materials.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and compatibility with existing equipment.
• Ensure all connections are secure and compatible with the pump’s inlet/outlet specifications (3" BSPT for similar models)
• Follow manufacturer guidelines for electrical and mechanical installation
• Regularly inspect diaphragms, balls, and seals for wear and replace as needed
• Use appropriate safety measures when handling chemicals or abrasive fluids