Sanitary Industrial Filters For Advanced Compressed Air and Gas Filtration

The newest name in advanced microfiltration technology for industrial compressed air and gas applications is the availability of Sanitary Industrial Filters. These filters offer the performance of standard, widely available coalescing filters, pre-filters, and activated carbon filters, but are manufactured with stainless steel housings and are typically equipped with sanitary inlet and discharge connections. Sanitary Industrial Filters offer a complete filtration solution to users with enhanced filtration requirements, incorporating housings specially outfitted for sanitary applications. Whether combined with a sterile filter for a staged filtration model to achieve the highest level of compressed air or gas purification, or used in tandem with other Sanitary Industrial Filters, these filters make available enhanced housing integrity that delivers the highest grade of compressed air filtration possible for specialized installations with demanding performance requirements.

Typically, this level of compressed air filtration is required by those industries with the highest purity requirements, such as dairy, food processing, beverage, medical, pharmaceutical, electronics, semiconductor, asceptic packaging, and chemical processing. Other applications served by sanitary industrial filters include any industry where sensitive measurement or pneumatic controls are employed.

Just a few of the highlighted benefits provided by a Sanitary Industrial filtration installation include:

  • Employment of high-quality, non-corrosive stainless steel housings for industrial applications that ensures the oxidation commonly found in aluminum housing filters will no longer be a problem.
  • Cleanability is enhanced with stainless steel housings, thereby extending the service life for all installed filtersno matter the filtration model employed.
  • Simplification of filter maintenance during element replacement.
  • Sanitary industrial filters offer filtration efficiencies of up to 99.99998% at 0.01 microns in coalescing filters, depending on the grade of the installed element.

End-user site requirements vary greatly from installation to installation. Some users have need for filters with sanitary connections, while others require NPT or even stub-end connections for welded installations. Still others have need for a combination of these connections. When considering the options available for Sanitary Industrial Filters, it’s critical to employ the unit that offers latitude with respect to customized product integration and installation. Further to physical installation flexibility, process engineers should be afforded the opportunity to customize a staged filtration model in an al la carte fashion to effectively and precisely address their specific needs. In other words, end-user system designs should have the option of employing any number of filter combinations; combinations that include employing any of the full-range of industrial filtration elements available. Specifically, the end-user should be able to select and combine any of all grades of coalescers, activated charcoal, dust filter, and vacuum filter elements for a staged filtration model that serves the requirements specific to their needs. These specialized installations oftentimes require greater flexibility than off-the-shelf aluminum housing filters can provide.

Being a recent innovation, the competitive landscape is limited, but the availability of Sanitary Industrial Filters and their complete range of element types and applications they serve are not. Sanitary Industrial Filters are, indeed, available with not just a full range of element grades and types, but also a variety of inlet/discharge sizes and types, as well as various operating pressure specifications, including high pressures units capable of up to 6,000 psi.

Buying the Right Industrial Air Compressor

Air compressors have numerous applications in industry and are used in various fields, including automation and assembly, chemical manufacturing, agriculture and construction. All compressors work by converting power from an external source, such as an electric motor or diesel engines, into stored energy which can be released in the form of pressurised air. The pressurised air is then used to power tools and machinery.

Choosing the Right Air Compressor

However compressors vary in their method of operation, air capacity and level of pressure that they can deliver. The right compressor will able to hold enough air and deliver a high enough level of pressure for the task, but performance should be balanced against considerations such as cost and durability. Compressed air is measured in cubic feet per minute (CFM), with a high requirement for CFM needing a larger air capacity and higher horsepower (HP).

Types of Industrial Air Compressor

There are three major types of industrial air compressor based on the method of operation. These are reciprocating compressors, rotary screw compressors and centrifugal compressors.


Reciprocating compressors are positive displacement compressors, where air is reduced in volume to increase its pressure. Reciprocating contain pumps driven by pistons with a cylinder compressing and displacing the air. There are two types, direct drive compressors and belt drive compressors. Belt drive compressors are more durable and able to deliver higher pressures. Reciprocating compressors are available in single stage and multi stage. Multi stage compressors deliver higher pressures and are more efficient, meaning lower electricity consumption and lower costs. Reciprocating compressors are often portable and suitable for trades people involved in construction and similar fields.

Rotary Screw

Rotary screw air compressors also work by a positive displacement process. They use two helical screws meshed together to force air through and compress it. The method of operation is a smoother process than that of pistons, with less surges and vibration than that sometimes found in reciprocating compressors. They are durable and easy to maintain. Rotary screw air compressors generally have greater capacities than reciprocating compressors and can deliver higher air pressures. Some types have variable speed drives meaning that airflow and pressure can be closely controlled, and where airflow requirements are variable this can result in significant energy savings. Rotary screw air compressors have various applications, finding use in areas such as construction sites, factories and hospitals.


Centrifugal air compressors work by a different mechanism. They use the momentum gained from a rotating disk to transfer and pressurise air. This process is known as dynamic displacement and is a continuous process, resulting in a steady supply of pressurised air. They can deliver extremely high pressures. However the method also requires higher speeds and higher air capacities than other compressors. The capacity and airflow can be controlled by way of inlet guide vanes. Centrifugal compressors have many applications, and are used for machinery such as pneumatic drills and automotive superchargers and turbochargers, as well as for air conditioning and refrigeration. They are also found in gas turbines, gas pipelines, oil refineries, petrochemical plants and chemical plants.

A Look at Industrial Air Compressors

Manufacturers and industry alike depend on the services of industrial air compressors. Most industries that use air compressors use high quality industrial-grade models. These models are different, more powerful and more expensive than ones that are used for lightweight jobs and for regular homeowners.

Industrial air compressors can be fueled by either natural gas or electricity. Most industries use natural gas to power their air compressors. Even though both types of energy used to run these industrial air compressors can be costly, many businesses find that using natural gas as a power source greatly reduces their utility costs.

Most industries use a two-stage type of air compressor for their needs. Generally speaking, this type of industrial air compressor is built for heavy-duty jobs. These offer a much higher level of air compression, as compared to smaller or compact models. Industrial air compressors usually also offer the ability to store unused air for future usage. These also can be more energy efficient because they run on a higher level of horsepower than other models; this increased usage of horsepower also creates a better working machine that is less likely to break down and requires less maintenance.

As with the purchase of any type of air compressor, those purchasing industrial air compressors need to be especially cautious of safety and quality standards. Very few industries are legally allowed to buy air compressors that are not certified by the American Society of Mechanical Engineers (ASME). Increased workplace safety and liability concerns have made it necessary for most companies to purchase high-quality, certified-devices to ensure the well-being of their employees. Some safety features may include a safety valve to use in the case of excess air pressure in the unit. The valve will automatically release air, therefore decreasing pressure, in the event of an overload of power. Without this safety device, users of the machine run the risk of causing an explosion.