Ideal for most food-related, cosmetic, and pharmaceutical applications, the Graco SaniForce™ Piston Pumps save time and money by pumping the most difficult materials quickly and safely. The piston pump flow rates range from 4 to 14 gpm (15 to 53 lpm), and are available in double-ball or priming piston designs. They have pressure ratios up to 12:1 and are ideal for low- to medium-viscosity materials.