The GRACO 649034 is an air-operated double diaphragm pump designed for reliable fluid transfer in industrial applications. It features a polypropylene (PP) center section and end flanges, PP seats, PTFE balls, and a PTFE diaphragm, making it suitable for handling a wide range of chemicals and abrasive fluids. This pump is engineered for smooth, low-pulsation operation and is intended for use in demanding environments where leak resistance and reduced maintenance are priorities.

Key Features:

• Air-operated double diaphragm pump
• Husky 1050 PP (NPT), End Flange
• Polypropylene (PP) center section and end flanges, PP seats, PTFE balls, PTFE diaphragm
• Maximum flow rate: 50.0 gpm
• Maximum fluid pressure: 125 psi (0.86 MPa)
• 1 in ANSI/DIN flange (raised face) for inlet/outlet; 1/2 in NPT air inlet; 3/4 in NPT air exhaust port
• CE
• Stall-free, low-pulsation air valve for smooth and rapid changeover
• One-piece center section eliminates leaks and reduces maintenance
• Up to 5x longer diaphragm life for less maintenance and downtime
• Modular air valve for easy service
• Non-metallic bolted design for chemical resistance

Applications:
Ideal for transferring chemicals, abrasive fluids, and other industrial liquids in environments requiring robust, leak-resistant, and low-maintenance pumping solutions. Suitable for mining, agriculture, chemical processing, and general industrial use.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and safety. Non-genuine parts may compromise pump integrity and void warranties.
• Ensure proper alignment of inlet and outlet flanges (1 in ANSI/DIN raised face)
• Connect air supply to 1/2 in NPT air inlet
• Route air exhaust to 3/4 in NPT exhaust port
• Check all connections for leaks before operation
• Follow GRACO’s recommended maintenance schedule for diaphragm and valve inspection
• Regularly inspect diaphragms and balls for wear
• Replace worn components with genuine GRACO parts
• Keep air supply clean and dry to prevent valve issues
• Periodically check for leaks and tighten connections as needed