Watson-Marlow’s 520 pump offers flow rates of 55 GPH at 30 psi to 7 GPH at 100 psi. Changing dye colour is completed by switching the tube element, there is no need to make down the dye or flush out the pump. The 520 pumps and LoadSure elements guarantee correct loading every time, as well as easy one-minute maintenance with no snaking, twisting or pinching.
Watson-Marlow Bredel pumps keep fluids contained within the tube at all times, never allowing fluid to come into contact with the pump mechanism, ensuring gentle, low shear handling of the fluid. Entrained dye is pumped with ease, plus corrosion and abrasive damage is restricted to the consumable tubing element. The elastomer tubing resists abrasive wear, providing predictable pump life costs, as the tube is the only part that will need replacing.