Product Description
The Graco D31211 Husky 307 is a pneumatic air-operated double diaphragm pump featuring a stall-free low pulsation air valve for smooth and rapid changeover. Built with polypropylene center section, acetal seats, PTFE balls, and PTFE diaphragm for reliable performance across demanding applications.
- Air inlet: 1/4 inch female NPT
- Fluid inlet: 3/8 inch NPT
- Maximum air pressure: 100 psi (7 bar, 0.7 MPa)
- Maximum fluid pressure: 100 psi (7 bar, 0.7 MPa)
- Operates on as little as 20 psi (1.4 bar)
- Delivery rate up to 7 gpm (26.5 lpm)
- Maximum operating temperature: 180 degrees F
- Overall height: 8.13 inches
- Compatible materials: antifreeze, detergents, motor oil, hydraulic fluid, cutting oil, wastewater, water, and ink
- Easy-to-service air valve and ball checks
- Quick and easy assembly and disassembly design
- 3/8 inch end porting
- Every pump tested prior to shipping
Ideal for oil transfer and evacuation, fuel dispense and transfer, windshield wash solution dispense, and water and antifreeze dispense applications. Some models are UL-approved for pumping gasoline, gasoline/alcohol blends up to 10% ethanol, diesel fuel, fuel oil, and lubricating oil. Available at Next Day Fittings for fast industrial delivery.