In an engineering project, mechanical seals play a great role in most of the activities such as constructing buildings or laying pipelines. Getting the right mechanical seal for the right job becomes a problem if you do not know what to consider in making your choice. In some cases, the project might state the recommended type of mechanical seal for the work. However, if there are no specifications, you must be conversant with the various types of gaskets, gland packing, and mechanical seals.
Most of the mechanical seal manufacturers and suppliers are always ready to help a client make the right choice of mechanical seal that they want for the project. However, their assistance can be in vain if they do not choose the right mechanical seal for your project and they are not to blame because they do not have a comprehensive understanding of the project. You own the project and know every detail about it, and therefore, it would be best to some basic information about mechanical seals that would help you in choosing the right seal for your project.
In the stores, you will come across various types of mechanical seals. Most people use the hydraulically balanced seal for their projects. His type of seal is preferable by most people because it does not produce lots of heat during its use and additionally, it can take high pressure. Before you settle for the type of seal you need to evaluate and estimate the amount of pressure in the pipe or machines and if it is over 400 pounds per square inch, then it is the most recommended one.
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Another type of mechanical seal is the stationary seal is appropriate for projects which have misaligned connecting machines. For example, this involves a pump and its driver or a stuffing box which does not fit to a rotating shaft. In overall, this type of seal is suitable for machines or pumps that work at high speed.
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Some project might emit heat in the process, or the project is carried out in an environment of high temperature and in such a scenario, you will need metal bellow seals. They might not only be useful in high-temperature areas, but they can also be helpful in conditions of extremely low temperatures.
Dual mechanical seals are the best for machines that have two way systems. These seals are also helpful in emergency scenarios such as when there is a shutdown or power interruption.
Not all project and machines will involve metallic parts, and therefore, non-metallic seals are essential when you need to connect parts that are not metallic and are made of other materials such as plastic, carbon, and Teflon. They work correctly in sealing gases and liquids in pipes. They are available in most stores and relatively cheap compared to metallic seals.