When choosing a filter for compressed air, make sure to think about these things:
What is the size of the particles that need to be filtered?
There are common filters that can clean tiny things that are between 5 and 40 microns big.
There are special filters that take very tiny things out of the air. They are used in places where medicines and food are made.
When something moves through a pipe or hose, the flow of the material can be reduced and the pressure can decrease. This is called flow and pressure loss or pressure drop.
The filter size changes based on how fast the gas flows through it. They can move gases quickly up to 1,700 Nm3/h.
To find the right size, you need to figure out how much pressure the filter can lose at most.
Look at the graph made by the company that shows how much liquid can pass through and how much pressure is needed.
It is best to not let the pressure drop more than 5 psi for best results.
Temperature is a measure of how hot or cold something is. It can be measured with a thermometer and is usually expressed in degrees Celsius or Fahrenheit. High temperatures can make us feel hot and uncomfortable, while low temperatures can make us feel cold and shivery. Weather forecasts often include information about temperature so we can prepare for the day's weather.
What temperature will the air filter work when it is squashed?
You can get really good filters that work when it is very hot (more than 450°C).
Environmental standards are rules or laws that aim to protect the environment by controlling human activities that harm the environment. These standards help to reduce pollution and protect the natural resources of our planet.
Air filters that squeeze air follow a rule called ISO 8573. This rule says how clean the air should be, even if there are tiny things like dust or liquid in the air system.
The rulebook gives basic facts about dirty things that can get into systems that have compressed air. It also points to other parts of a document called ISO 8573 that explain how to check how pure compressed air is or set rules for how pure it has to be.
The ISO 8573-1:2010 standard says which gases and germs might be bad.
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