The hydraulic fluids system depends a lot on the hydrodynamic filtering units to drive sludge away from the filters. This system aims to reduce the failure rate of the equipment so that the filters can work efficiently when there is an overload of fluids.

Types of hydrodynamic filters

Many hydrodynamic filters differ in two factors such as the organization of the output streams and the method of flow swirl. This swirl usually offers the creation of additional force field inside the filters. But on a broader context, these filters are divided into the following groups in which their types are categorized:

1. With or without sludge liquid

The first category of these filters features the one that comes either with or without the sludge fluid. These are further divided into two groups of filters: one, the full-flow filters, and second, the part flow filters.

a) Full-flow filters

The full-flow filters pass through a filter septum from where all the liquids are bypassed. These liquids arrive for purification, and the filter septum creates the barrier to stop the impurities. One of the benefits of this system is it doesn’t contain the sludge fluid. This allows a better purifying facility than its counterpart. However, their self-cleaning ability is not as satisfactory as the part-flow filters. Full-flow filters are often used where there is a full collection of impurities, and there is no other way to clean the contaminants. The liquid that passes through the filter septum should have low viscosity and low obliteration properties.

b) Part flow filters

In the part flow hydrodynamic filters, the entire filtered fluid doesn’t pass through the filter septum. Usually, 10 to 15% of the filtered fluid passes through the septum and reaches the flush the accumulated sediment from the surface. However, the contaminants filtered from this unit is dumped into the tank after the filtered fluid passes the septum. In many filters, the pollutants are disposed of after they are properly decontaminated.

2. Swirl flow

The second category of these filters involves a unique part of their design that creates an additional swirl flow. This reduces a significant load on the filter by using a centrifugal mechanism to separate parts of the contaminants. These filter units are divided into five types: with rotating filter septum, with vibrating and rotating filter septum, with rotating filter septum in a protective shell, with a unique twisting device, and a filter system that has a large curvature on the surface.

One of the reasons why the swirl flow system is so much in demand is it allows you to obtain devices that have a rotating filter septum. This gives you an added facility to adjust the rotational speed according to properties of the medium that you are cleaning. When you follow this system, you have the chance to obtain a significant force on the stream that you are cleaning even while using the minimum filter sizes. Combining it with the rotation filter septum increases its cleaning ability leaving the fluid free from contaminants.