The GRACO D3B966 is an air-operated double diaphragm pump designed for reliable fluid transfer in industrial applications. It features a polypropylene (PP) center section and seats, Santoprene (SP) balls and diaphragms, and is intended for use in systems requiring robust, chemical-resistant pumping solutions.

Key Features:

• Air-operated double diaphragm pump
• Husky 307, 3/8 in. (9.52 mm) BSP
• Polypropylene (PP) center section and seats, Santoprene (SP) balls and diaphragms
• Up to 7 gpm (26.5 lpm)
• Maximum fluid discharge pressure: 100 psi (7 bar, 0.7 MPa)
• Suitable for a wide range of industrial fluids, especially those requiring chemical resistance
• Stall-free low pulsation air valve for smooth and rapid changeover
• Quick and easy assembly/disassembly
• Easy-to-service air valve and ball checks
• Operates on as little as 20 psi (1.4 bar, 0.14 MPa)
• Split manifold option for pumping multiple fluids without mixing
• Fully-groundable acetal model available (not this specific variant)
• Every pump is tested prior to shipping

Applications:
Ideal for transferring chemicals, solvents, and other industrial fluids in manufacturing, lubrication, and maintenance systems. Suitable for use in environments requiring reliable, low-maintenance fluid handling.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and compatibility with existing equipment.
• Install a bleed-type master air valve between the fluid inlet and outlet ports for safe operation
• Use appropriate air supply hoses and quick disconnects
• Ensure proper grounding for safety, especially in hazardous environments
• Regularly inspect and service air valve and ball checks for continued reliability
• Follow manufacturer’s installation and maintenance guidelines
• Use only recommended replacement parts
• Test pump operation after installation