Selection

Before starting any selection, define the product viscosity, the pressure and the delivery needed and the operation temperature, than proceed to the pump selection. On our experience, an informed and trained customer can easily understand the quality of our product. In this way, following we will try to teach you most important arguments about pumps. Anyway theses “lessons” are just simplified resume of more complex subject.

Viscosity: The selection of the pump dimension is mainly limited by the viscosity range of the pumped product. The entire selection operation can be easily resumed in this law: the higher the viscosities the less the speed rotation. Naturally this is not the only parameter that must be considered in the pump selection, but can help us focalise what is needed, because give us a rotation speed limit. Temperature influences on the viscosity in inverse ratio, so the same liquid represents different viscosities depending on the temperature of the environment: the higher the temperature the less its viscosity.

Pressure: The delivery capacity of a gear pump depends also to the work pressure. The entire selection operation can be resumed in a short law: the higher the pressure the higher the delivery losses. The delivery losses can be determinates using the Curves in this catalogue. Viscosity influences also the delivery losses percentage. If in doubt, please don't hesitate to contact our office.

Materials: Now, once the pump size and work condition are fixed, we can proceed to selection of products that completely match your requirements. The pump series differ especially for constructions materials, so select the pumps checking its compatibility with the pumped fluid.

Delivery: The easiest and important point in determination of pump size: the size it self. Find the size that will deliver your product according to operating parameters. Capacity of a gear pump is calculated in cubic centimeter per revolution.