Mechanical Seals – Why Use Them?
It is paramount to ensure that you mechanical parts of a device are joined well and strongly together. This helps in keeping the parts from disintegrating hence making the structure strong. However, there are times that such structures do hold fluids or other matter. This calls for very strong and well connected joints. Seals are the best option in such situations.
Mechanical seals are the main items used in handling such leakage issues. So what are mechanical seals? Well, mechanical seals are devices that are used whenever systems are being joined mechanically. Used on openings of most devices, mechanical seals aid in preventing leakages. Packing is another name used in some quarters to refer to seals.
Sealants and gaskets are some forms of mechanical seals. Sealants join parts using the power of adhesives. This means that how effective a sealant will be is purely dependent on how strong the adhesive is. Gaskets on the other hand use pressure to keep two parts of the system together and avoid leakage. Gasket strength is therefore dependent on compression.
There are several types of mechanical seals. The apex seal is however the most common. The fact that it is used mainly at the opening of containers and devices makes it common. This is what gives it the name apex seal. Most apex seals are used in devices that hold a form of fluid. The fact that such devices are usually powerful means that only a strong seal can be used. The use of pressure in apex seals guarantees strong connection.
Some motor vehicle engines use apex seals. The best example is their use in rotary engines. Due to the fact that an engine is a powerful device, there is need to use the best seal to avoid any mechanical problems. Due to the fact that apex seals are strong and durable, they are the best suited for rotary engines. Depending on the type of engine, one or more apex seals can be used. In most cases, three of them are used at different openings of the engine.
People who opt not to use seals in some devices may encounter problems. Some devices use seals to keep dangerous fluids contained. Fuels are some of the fluids that can be contained using seals. In a situation where there are no seals or the seals are weak, the fluid could find itself out under high pressure. Such situations can lead to burn on human beings who may be in close proximity with the device. If using seals, it is advisable to consult experts in mechanical work so as to be directed on the best one to use. Professional advice from mechanical engineers would come in handy.
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