Gear pumps, self-priming, double direction of rotation. The liquids are transferred via two gears. If the pump flow is greater than required by the particular application, the adjustment must be made to by-pass valve on the pressure of the pump and not by throttling of the discharge pipe.

 

APPLICATIONS

Varrnish, thick oil and liquids, glue, molasses, liquid soaps, oil, fuel oil, etc. The liquids must not contain solid particles.

DESCRIPTION

It is a rotary self-priming positive displacement pump with spur gears.

The liquid transfer from the suction side to the batch side is assured by a toothed couple of wheels with direct teeth and in-volute profile correct and rectified. One of these two wheels is linked, by a coupling, with the electric 'motor; the other one is dragged from the first one. The two rotors are lodged inside the body in seats realized with a high degree of finish and very narrow tolerances of work. The transport of the fluid is continuous without emulsions that could alter the pumped product. The pump is able to create the necessary and sufficient empty space to inspire the liquid and it can be used, with the same results, in a sense or in the contrary sense. Delivery capacity increases in direct proportion with the rotation speed. The batch pressure does not depend from the rotation speed.