The GRACO 659020 is a heavy-duty electric-operated double diaphragm (EODD) pump designed for industrial fluid transfer. It features an aluminum center section and TPE diaphragms, making it suitable for handling a wide range of chemicals and abrasive fluids. This pump is engineered for reliable, efficient, and low-maintenance operation in demanding environments.

Key Features:

• Electric-Operated Double Diaphragm (EODD) Pump
• Husky 3300e, 3"
• Aluminum center section, TPE diaphragms, TPE seat, Acetal ball
• Up to 220 gpm (not all sources specify; some list up to 1,136 L/min for air-operated variant, but for EODD, 220 gpm is referenced)
• Designed for integration with GRACO industrial fluid transfer systems
• High-speed gear ratio
• 7.5 HP AC motor, 240V
• End port BSP connections
• Seal-less design
• Runs dry, self-primes, stalls under pressure
• Low pulsation without costly dampeners
• Near 0 dB in-plant noise pollution
• Up to 80% energy reduction vs. pneumatic
• Accurate fluid metering with VFD controls*
• Long diaphragm life and minimal maintenance

Applications:
Industrial fluid transfer, chemical processing, mining, agriculture, and other demanding environments requiring reliable, low-maintenance pumping solutions.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and safety. Non-genuine parts may compromise pump efficiency and longevity.
• Ensure proper alignment of inlet and discharge connections
• Verify electrical supply matches pump requirements (7.5 HP, 240V)
• Follow all local electrical and safety regulations
• Inspect diaphragms and seals before installation
• Prime the pump as recommended by the manufacturer
• Regularly check for leaks and wear, especially in abrasive applications
• Regularly inspect and replace diaphragms and seals as needed
• Monitor for unusual noise or vibration
• Keep the pump and surrounding area clean and free of debris
• Follow the manufacturer’s lubrication and maintenance schedule