Modular External Gear Pumps

Operating Principle of Yildiz Modular External Gear Pumps

Fluid entering the pump: The yellow coloured section in the image represents the process medium as it is entering the pump suction port, pump casing & filling the cavities between Gears. The 3 arrows indicate the direction of fluid passage through the pump and rotational direction of the gears.

Fluid filling the cavities between the teeth of the gears & casing: As the fluid progresses through the pump head and fills the cavities between the gears it is carried around the outside of the gears filling the casing at the top and bottom.

The pump is flooded & starts to discharge the process medium under pressure: Once the pump is fully flooded, the driving gear (Top) and driven gear (Bottom) form a liquid seal thanks to their intermeshing teeth, which then enables the fluid to exit the discharge of the pump under pressure. The delivery pressure is dependent on the installed power of the motor.