The GRACO D32337 Husky 307 is a standard air-operated double diaphragm pump with a polypropylene center section, stainless steel seats and balls, and a Buna-N diaphragm. It is designed for reliable, low-maintenance transfer of a wide range of fluids, including oils, fuels, water, and anti-freeze, in industrial and commercial applications.

Key Features:

• Air-operated double diaphragm pump
• Husky 307, 3/8" NPT
• Polypropylene center section, stainless steel seats and balls, Buna-N diaphragm
• Up to 7 gpm (26.5 lpm)
• Maximum fluid working pressure: 100 psi (7 bar, 0.7 MPa)
• Suitable for oil transfer and evacuation, fuel dispense and transfer, windshield wash solution dispense, water and anti-freeze dispense; some models UL-approved for gasoline, gasoline/alcohol blends up to 10% ethanol, diesel fuel, fuel oil, and lubricating oil
• UL-approved for certain models (see compatibility)
• Stall-free low pulsation air valve for smooth and rapid changeover
• Quick and easy assembly and disassembly design
• Easy to service air valve and ball checks
• Operates on as little as 20 psi (1.4 bar, 0.14 MPa) air pressure
• Split manifold option to pump multiple fluids without mixing
• Every pump is tested prior to shipping
• 3/8" (9.52 mm) end porting

Applications:
Oil transfer and evacuation, fuel dispense and transfer, windshield wash solution dispense, water and anti-freeze dispense, and other industrial fluid transfer tasks

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and safety, and maintains warranty coverage.
• Ensure all connections are secure and leak-free
• Use appropriate thread sealant for NPT connections
• Follow manufacturer’s guidelines for air supply and pressure settings
• Regularly inspect and maintain air valve, ball checks, and diaphragm for optimal performance