Tuesday, 22 April 2014

The Characteristics Of Hydraulic Seals

By Essie Osborn


Hydraulics is one of the fields of study in engineering and applied science. This subject basically discusses the properties of liquids. As discussed in the topic, liquids actually possesses pressure so powerful that it can destroy a tight connection of molecules such as that in cemented buildings. That is why when tsunami strikes, even those structures give way to the overwhelming pressure.

Not just that, even some liquid containers show deformation due to the pressure exerted by liquid molecules. For this, there is a strategic design employed to containers of fluids to counter this characteristic. This is the same in hydraulic systems. That is why engineers and scientists invented a material that could counter the properties of fluids and that is the hydraulic seals.

This material is actually non metallic and soft. It also looks like a ring and it is commonly used in a set. It is basically used to prevent fluids from traversing into the other area which consist a transverse force. With that, its primary function is to block, or separate fluids. This is why this material is very much vital to machinery.

This is manufactured from rubber and some other components which are capable of withstanding pressure and temperature. This where the challenge in choosing the right type of seal is based. There are many occasions of damaged seals which result to dangerous situations due to the inappropriate selection of material.

Combined seals are actually used with hydraulic systems and they are specialized ones. Speaking of this, there are two types of these materials. One is called the rod, while the other one is called the piston. The former is actually the type which is purposely designed to prevent any fluid to flow outside the cylinder. While the latter is used for the purpose of preventing the fluid to reach the head of the cylinder.

Here are some information in order to avoid inappropriate seal selection. The most common cause of failure is if you selected a wrong seal. First is choose one that is capable of operating in the given range of temperature. Another is choose one that is able to withstand given pressure and speed. Also, see to it, that it is compatible with the system fluid.

Make sure that when you install it, they fit rightfully. Also, carefully assemble the parts. Aside from that, follow these points. First, ensure that parts are clean and have a smooth surface. Lubricate the seals with the unifying liquid upon its installation and do not forget to check if you are using the appropriate material.

Speed is also a concern here. This is because friction always goes with speed. The result of this would be that the oil film that is between the surfaces and the seal itself will break. That is why there should be careful consideration of this characteristic as well in choosing the right one to be used.

All of these, the pressure, the speed, the temperature, and the smooth surface actually go together to attain a good result. Any one of these that is taken for granted might give rise to unnecessary problems. So it is best to carefully consider all of these aspects first and oversee the process too just to be sure.




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