Nothing but the hose or tube touches the fluid, eliminating the risk of the pump contaminating the fluid, or the fluid contaminating the pump.
The animation shows fluid being drawn into a pump, trapped between two shoes (in a Bredel pump) or rollers (in a Watson-Marlow pump), and finally being expelled from the pump. The gaps between the packets of fluid are shown only to help visualise the action.
The complete closure of the hose which is squeezed between a shoe and the track gives the pump its positive displacement action, preventing backflow and eliminating the need for check-valves when the pump is not running. - There is no contamination of the pump or fluid
- Ideal for slurries, viscous, shear-sensitive and aggressive fluids
- Easy to install, simple to operate, inexpensive to maintain
- Pump design prevents backflow and syphoning without valves
- Wide range of tubing includes industrial, food-grade and medical
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