The GRACO D3A255 Husky 307 AC is an air-operated double diaphragm pump featuring a polypropylene (PP) center section, AC seats, TPE balls, and TPE diaphragm. It is designed for reliable, low-pulsation fluid transfer in industrial applications, compatible with a wide range of chemicals and fluids.

Key Features:

• Air-operated double diaphragm pump
• Husky 307 AC, 3/8 in. BSP
• Polypropylene (PP) center section, AC seats, TPE balls, TPE diaphragm
• Maximum flow rate: 6.5 GPM (24.6 LPM)
• Maximum air pressure: 100 psi (0.69 MPa); Maximum fluid working pressure: 100 psi (0.7 MPa, 7 bar)
• Compatible with a wide range of chemicals and fluids, suitable for industrial environments
• Stall-free, low-pulsation air valve for smooth and rapid changeover
• Quick and easy assembly and disassembly
• Easy-to-service air valve and ball checks
• Operates on as little as 20 psi (1.4 bar, 0.14 MPa) inlet air pressure
• Split manifold design for simplified maintenance
• Fully groundable housing for safety

Applications:
Ideal for transferring chemicals, solvents, and other industrial fluids in manufacturing, mining, agriculture, and maintenance operations.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and safety in demanding industrial environments.
• Ensure proper grounding of the pump housing for safety
• Follow manufacturer-recommended torque specifications during assembly
• Regularly inspect and service air valve and ball checks for consistent performance
• Use compatible fluids and chemicals as specified in the manual
• Perform routine checks on diaphragms, balls, and seats for wear or damage
• Lubricate moving parts as recommended
• Keep the pump clean and free from debris