Positive displacement gear pumps
Description and working principle
Internal gear pumps are used for a wide variety of fluids, very viscous or loaded with solid particles. The flow does not pulse, it is reversible and the pump is self priming. The outer teeth are driven and drag along the inner toothed rotor. When turning the cavities enlarge so that a suction an pressure effect is created. The flow is almost independent of the pressure. Available in cast iron, specially treated steel or stainless steel.Also very suitable for liquids with temperatures up to 300 ° C with stuffing box or mechanical seal. Magnetic drive is also possible. Accessories: single or double bypass, full or partial heating jackets.
Bitumes, glues, chocolate, ...