Selection of precision purification filters

What makes filter elements get different grades?

The ISO 8573.1 quality grade measures how well a filter works with compressed air. Usually, we divide it by the size of dirt, how much water is in it, and how much oil is left. This happens after the filter does its job.

How are the levels of filters separated?

There are four types of general filters: pre-filter, primary filter, fine filter, and activated carbon filter. There are different filters that remove different sizes of particles and oil mist from the air. The pre-filter takes out particles that are 3-5 μm, the primary filter takes out particles that are 0.5-1 μm and any oil mist that is 1 ppm w/w, and the fine filter takes out particles that are 0.01 μm and any oil mist that is 0.01ppm w/w. The activated carbon filter is used to get rid of bad smells and some oily air. It can remove almost all of the oil mist, leaving only a tiny amount.

When should you use different types of filters?

The pre-filter is usually put behind the compressor, and it doesn't need to be complicated. Filters that are used for tools, motors, cylinders, and similar things are usually called primary filters. Fine filters are used in different things like painting, making things with injection molding, controlling valves, making electronic stuff, separating nitrogen, and more. People use activated carbon filters in making food and drugs, cleaning the air we breathe, and treating gases.

Why is it important to buy filters in a set?

Many people believe that they only need to choose one filter based on how clean they want their air, but this may not be enough and could end up costing them more money. To keep the air filter working well, we need to use a pre-filter before it. This helps prevent the main air filter from getting blocked too quickly. The filter needs to be changed more often, which will make things cost more without people noticing.

Can filters reduce the amount of water in the air?

Filters usually only get rid of solid and liquid bits, while water vapor and oily vapor can still move through the filter material without difficulty. Regular filters can't remove it, except for activated carbon filters. To get rid of water and oil in the air, use a dryer to cool it down.

How does the temperature of the air affect how well a filter works?

The filter works better or worse based on how hot or cold the oil and water in the compressed air are. When it is hot outside, more oil flows through the filter. If it is 30°C, there is 5 times more oil than at 20°C. If it is 40°C, there is 10 times more oil than at 20°C. The filter is usually put in the coldest part of the air system.

What's the difference between filter elements made in our country and ones made outside?

Domestic filter elements are not as good as imported ones because of the materials and equipment used to make them. The old-fashioned tools and machines we use can't help us make better household filters because we don't have a reliable way to measure their quality. Domestic filter elements are usually not as smooth and are bigger than imported ones.

What filters can you choose from?

The filter can have extra parts like automatic drains, pressure gauges and indicators. These parts help to check the pressure and level of liquid.

Why do we use filter options?

The optional filter has two parts, called the internal and external automatic drainers. They help by getting rid of oil, water, and dust that the filter has caught. This happens automatically, so people don't have to do it. It helps the filter work better. We use tools like differential pressure gauges and electronic indicators to tell us when it's time to change the filter. The level checker shows how much gunk is mixed in the liquid, like oil, water, and dirt. The filter can tell you when to drain it by itself or when you need to do it manually.