Tuesday, October 29, 2013

What does a Hydraulic Filter Do?

Hydraulic Filters
Hydraulics uses the mechanics of how fluids behave to create mechanical power. This has allowed for a lot of compact, complex and powerful devices and mechanical equipment. The use of basic hydraulic systems has been around since ancient times, from the creation of irrigation systems to canals to the water wheel. As technology developed so do did the refinement of type of mechanics into pneumatics and now even whole power systems can be created and finely tuned using fluid power transfer and hydraulic systems. By using these pressurized fluids we have built smaller and more powerful machines than would be possible with solid mechanics. However these systems are vulnerable to contamination and corrosion, as solid matter enters into them they become less effective and can even become damaged which is why most systems have a filter.
Mechanics of a Filter

Hydraulic Filters from places like Hydrac.co.uk  are built around the properties of liquid to move and flow, solid matter even small bits and pieces can cause clogging or sluggishness, interrupting the core physics that make these systems work in the first place. By adding a filter stage to these systems you can help keep them running at optimal efficiency longer and help prevent the mechanical parts themselves from becoming damaged. Filters are rated in microns; a micron is short for micrometer or a space of one-millionth of a meter. Now measurements in that size seem insanely small, even 20 microns is a fine enough filter that most people would think nothing can get through. But this is all about flow, even particles small enough to be measured in this scale can cause gunky build up, clogs, and lower effectiveness of your systems. Most factory issued filters are around 10 microns. In general the lower the micron numbers the finer and more effective the filter will be.

Filter ratings
Hydraulic systems vary in application and design and so filters have different rating to help you fit the right filter to the right system. We already covered micron rating, the smaller the micron rating the small particles the filter can grab. The burst rating is the pressure a filter can take before it deforms and fails to work anymore, usually you want a minimum burst rating at twice the pressure of the system you are using so even if it gets pushed hard the filter will still stand up. Another important rating is flow rating, this indicates how much liquid the filters can process over a given period of time, the more that a filter can remove the slower the flow rate is going to be, you want to select one that has a flow rate that is effective, and can keep up with the pressure and speed of the rest of the system.

The Filter for You
The key to maintaining an optimal hydraulic system is preventing contamination of solid particles in the pressure flow. By understanding this, and looking at the needs of your system compared to the ratings of the filters you have chosen. Doing so will provide you with the speed and pressure you need while providing the protection from contamination and other damage and issues that contamination can cause. This will maximize the effectiveness and longevity of your hydraulic system so it is ready to perform as reliably for you as it did for the ancients that first started using water for power.

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