The GRACO D43911 is an air-operated double diaphragm pump designed for reliable fluid transfer. It features an aluminum body, polypropylene center section, polypropylene seats, PTFE balls, and PTFE diaphragm. This pump is intended for use in industrial applications requiring robust, leak-free, and easy-to-maintain fluid handling.

Key Features:

• Air-operated double diaphragm pump
• Husky 716, 3/4" BSP porting
• Aluminum body, polypropylene center section, polypropylene seats, PTFE balls, PTFE diaphragm
• Maximum free flow delivery: 16 gpm (61 lpm)
• Maximum fluid working pressure: 100 psi (7 bar, 0.7 MPa)
• Compatible with a wide range of industrial fluids, suitable for remote control operation
• No mechanical seals to leak or fail
• External controller for remote control capabilities
• Runs quietly at less than 85 dBa with remote muffler capability
• Easy-to-service air valve and ball checks
• Center and end porting options available
• Maximum pump speed: 400 cpm
• Maximum suction lift: 15 ft (4.5 m) dry
• Maximum size pumpable solids: 0.09 in (2.5 mm)
• Maximum ambient operating temperature: 180°F (82°C)

Applications:
Used for evacuating and transferring fluids in industrial environments, including manufacturing, mining, agriculture, and other sectors requiring robust and reliable fluid handling.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and safety. Non-genuine parts may compromise pump integrity and void warranties.
• Read all instruction manuals, tags, and labels before operating the equipment.
• Ensure proper alignment and secure mounting of the pump.
• Use appropriate fittings and hoses for the intended fluid and pressure.
• Install air regulator and filter with gauge for optimal air supply.
• Regularly inspect and maintain air valve, ball checks, and diaphragms for longevity.
• For remote control, use the external controller as specified.
• Perform routine maintenance as outlined in the manual.
• Check for leaks and wear periodically.
• Replace worn or damaged parts with genuine GRACO components.
• Keep the pump clean and free from debris.