The GRACO 649221 is a conductive polypropylene air-operated double diaphragm pump designed for safe, reliable fluid transfer in industrial environments. It features a conductive polypropylene end flange and center section, acetal seats and balls, and a TPE (thermoplastic elastomer) diaphragm. This pump is engineered for handling fluids where static electricity buildup must be minimized, making it suitable for flammable or hazardous liquid transfer.

Key Features:

• Pneumatic Diaphragm Pump
• Husky 1050, 1-inch
• Conductive Polypropylene (end flange and center section), Acetal (seats and balls), TPE (diaphragm)
• Maximum free-flow delivery: 189 l/min (50 gpm)
• Maximum fluid working pressure: 8.6 bar (125 psi, 0.86 MPa)
• Compatible with a wide range of industrial fluids, especially those requiring static dissipation
• UL listed
• Stall-free, low pulsation air valve for smooth and rapid changeover
• Modular air valve for easy maintenance
• Conductive polypropylene construction for static dissipation
• Acetal seats and balls for chemical resistance and durability
• TPE diaphragm for flexibility and long service life
• End flange design for easy installation and serviceability

Applications:
Industrial fluid transfer, especially for flammable or hazardous liquids where static electricity control is critical. Suitable for use in chemical processing, fuel transfer, and other environments requiring static-safe equipment.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, safety, and compatibility with existing equipment. Non-genuine parts may compromise pump integrity and safety.
• Ensure all connections are secure and properly aligned before operation
• Use appropriate thread sealant on threaded connections
• Verify that the pump is grounded to prevent static buildup
• Follow all safety instructions in the GRACO manual
• Regularly inspect and maintain the pump according to manufacturer recommendations
• Inspect diaphragms, seats, and balls for wear and replace as needed
• Check for leaks and ensure all seals are intact
• Clean the pump regularly to prevent buildup of contaminants
• Use only GRACO-approved replacement parts