What are pneumatic filters?

Pneumatic filters are specially engineered tools that keep pneumatic systems running smoothly by eliminating impurities from compressed air, such as water and oil vapour. A 'media' is often used to trap particles while letting air pass through. A type of membrane can also be used instead of a media, enabling only air to pass through. Filters for pneumatic air are frequently used in conjunction with pneumatic air lubricators.

Importance of pneumatic filters

Pneumatic filters are regarded as a necessary component for preventing pneumatic equipment failure. These keep pneumatic machinery working efficiently and effectively clean compressed air from water and all other contaminants. Using pneumatic filters, therefore also enhances the lifespan of components. Pneumatic filters can be used in a wide range of industrial environments including food processing and beverage packaging, medicine, analytical instrumentation, manufacturing, aviation, marine, and more.

Types of pneumatic filters

There are different types of pneumatic filters available in the market. The most common types of pneumatic filters include:

• Primary filters: Primary pneumatic filters are responsible for protecting pneumatic devices from potential damage by completely eliminating contaminants like small water droplets, aerosols, and dirt particles. Particles are as small as five micrometres can be removed by these basic filters.
• Secondary filters: Secondary pneumatic filters can trap particles as small as 50 nanometres. They can filter out gases, odours, moisture, oils, fumes, and other fine particles from the air.

Other than these two basic types, pneumatic filters are also available in varieties like pneumatic water separators, pneumatic particulate filters, pneumatic coalescing filters and absorbing filters. These types of filters can filter out water, dirt and particles, rust, and oil respectively.