The GRACO D32911 Husky 307 is a pneumatic (air-operated) double diaphragm pump designed for reliable fluid transfer. It features a polypropylene (PP) center section, PP seats, PTFE balls, and a PTFE diaphragm, making it suitable for handling a wide range of chemicals and fluids in industrial applications.

Key Features:

• Pneumatic Diaphragm Pump
• Husky 307, 3/8 in. (9.52 mm) NPT
• Polypropylene (PP) center section, PP seats, PTFE balls, PTFE diaphragm
• Maximum flow rate: 24.6–26.5 L/min (6.5–7 gpm)
• Maximum fluid pressure: 100 psi (7 bar, 0.7 MPa); Maximum air pressure: 100 psi (700 kPa)
• Suitable for a wide range of chemicals and fluids; available in polypropylene and groundable acetal models
• CE
• 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)
• Split manifold option to pump multiple fluids without mixing
• Every pump is tested prior to shipping
• Fully-groundable acetal model available

Applications:
Ideal for industrial fluid transfer, chemical processing, and applications requiring reliable, low-maintenance pumping of corrosive or abrasive fluids. Commonly used in manufacturing, mining, agriculture, and maintenance operations.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and safety. Non-genuine parts may compromise pump efficiency and longevity.
• Ensure all connections are tight and leak-free
• Use appropriate thread sealant for NPT connections
• Verify air supply is clean and regulated to recommended pressure
• Check for proper grounding if required (especially for acetal models)
• Follow manufacturer’s guidelines for fluid compatibility and maximum operating temperature (up to 66°C)
• Regularly inspect and service air valve and ball checks
• Monitor diaphragm and seals for wear or damage
• Clean pump components as needed to prevent clogging
• Replace worn parts with genuine GRACO components