The GRACO 647731 is an air-operated double diaphragm pump designed for oil evacuation and transfer. It features a one-piece center section and is constructed with Buna-N, Acetal, or TPE materials for compatibility with various fluids. Its primary function is to provide efficient, leak-free transfer of oil, water, antifreeze, and waste oil within industrial and maintenance settings.

Key Features:

• Air-Operated Double Diaphragm Pump
• Husky 1050 Series
• Buna-N, Acetal, or TPE (Thermoplastic Elastomer) materials
• Maximum fluid pressure: 100 psi (7 bar, 700 kPa)
• Oil, water, antifreeze, waste oil
• UL Certified
• Stall-free low pulsation air valve for smooth and rapid changeover
• One-piece center section eliminates leaks and reduces maintenance
• Modular air valve for efficient operation
• Four bolt joint design for even sealing pressure and leak-free operation
• Multiple ports for installation flexibility
• Longer diaphragm life (up to 5x longer than competitors)
• Optional DataTrak™ for runaway protection and material usage tracking
• Optional Pulse Output for cycle count capability
• Spring-loaded, externally serviceable pilot valves for faster changeover and reduced pulsation
• 30% more efficient than the market leader

Applications:
Oil evacuation, oil transfer, water, antifreeze, and waste oil transfer in industrial, mining, agricultural, and maintenance environments.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and compatibility with existing equipment.
• Ensure proper alignment and secure bolting of the one-piece center section to prevent leaks
• Use compatible fittings and hoses for the intended fluid
• Regularly inspect diaphragms and pilot valves for wear and replace as needed
• Follow manufacturer guidelines for air supply and exhaust port connections
• Consider optional features such as DataTrak™ and Pulse Output for enhanced monitoring and safety
• Perform routine checks on diaphragm and valve condition
• Lubricate moving parts as recommended
• Monitor for leaks and address promptly
• Replace worn components with genuine GRACO parts