Gas Filtration and Separation
Centro carries a complete online selection of gas filtration products to meet your needs. Whether you're looking for compressed air filtration or FRLs, we have the right product. Our gas vessels and coalescers...
Categories in Gas Filtration and Separation (4)
Compressed Air
Compressed air filtration is a critical component of air compression systems, designed to remove impurities and contaminants from compressed air. These filtration systems consist of various elements, including coalescing filters and particulate filters, to ensure that the compressed air is clean, dry, and free from pollutants. They find application in industries like manufacturing, automotive, and pharmaceuticals, where the quality of compressed air plays a crucial role in equipment performance and product quality.
Gas Filtering
Gas filtration parts are crucial components in filtration systems designed to remove impurities and contaminants from gases. These parts encompass various elements, such as filters, cartridges, and coalescers, ensuring that gases are purified and free from pollutants. Gas filtration parts find applications in multiple industries where gas purity is essential for equipment and environmental protection.
Oil/Mist Coalescing
Oil/Mist Coalescing filters remove fine oil aerosols, water droplets, and sub-micron liquid contaminants from compressed air and process gas streams. Liquid droplets collide and merge within the filter media, then drain away rather than passing downstream, protecting pneumatic equipment, instruments, and processes from oil carryover and moisture damage.
Mufflers & Silencers
Mufflers & Silencers reduce the noise generated by compressed air and gas exhausting to atmosphere, typically from pneumatic valves, cylinders, and other exhaust ports. Many also incorporate a filtration element to capture particulates and oil mist from the exhaust stream, protecting nearby personnel and equipment while keeping the work area cleaner and quieter.
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Engineered by Stauff, the 1020018449 is a Filter Element Item 1020023704. This product serves professionals across construction equipment, mobile machinery, and marine sectors. As a leader in hydraulic components and fluid power accessories, Stauff manufactures every component to exacting standards.
$305.64$332.21
Available for Purchase
Subject to factory lead times
Engineered by Stauff, the 1020018450 is a Filter Element. It is commonly found in wind energy, construction equipment, and hydraulics applications. Stauff products are trusted by engineers and specifiers worldwide. It is designed to comply with applicable ISO and DIN requirements.
$1,024.37$1,113.44
Available for Purchase
Subject to factory lead times
Part number 1020019003 from Stauff is a Filter Element. This product serves professionals across hydraulics, construction equipment, and wind energy sectors. Stauff is recognized globally for engineering products that meet strict performance standards. This product meets relevant ISO and DIN standards.
$924.49$1,004.88
Available for Purchase
Subject to factory lead times
Part number 1020020192 from Stauff is a Rmf Element. Typical applications span mobile machinery, industrial automation, and marine environments. The 1020020192 reflects Stauff's long-standing reputation for quality and innovation.
$425.97$463.01
Available for Purchase
Subject to factory lead times
The Stauff 1020022779 is a Filter Element. This product serves professionals across wind energy, hydraulics, and mobile machinery sectors. As a leader in hydraulic components and fluid power accessories, Stauff manufactures every component to exacting standards. This product meets relevant ISO and DIN standards.
$726.86$790.06
Available for Purchase
Subject to factory lead times
The Stauff 1020023597 is a Filter Element. It is commonly found in mobile machinery, industrial automation, and marine applications. Backed by Stauff's commitment to quality, the 1020023597 is built to perform under real-world conditions.
$388.95$422.77
Available for Purchase
Subject to factory lead times
Part number 1020023599 from Stauff is a Filter Element No Stauff Label. Typical applications span construction equipment, industrial automation, and mobile machinery environments. Stauff products are trusted by engineers and specifiers worldwide.
$388.95$422.77
Available for Purchase
Subject to factory lead times
The Stauff 1020023602 is a Filter Element. This product serves professionals across mobile machinery, hydraulics, and construction equipment sectors. Backed by Stauff's commitment to quality, the 1020023602 is built to perform under real-world conditions.
$242.48$263.56
Available for Purchase
Subject to factory lead times
The 1020023607 from Stauff is a Filter Element. This product serves professionals across mobile machinery, marine, and industrial automation sectors. Backed by Stauff's commitment to quality, the 1020023607 is built to perform under real-world conditions. It is designed to comply with applicable ISO and DIN requirements.
$388.95$422.77
Available for Purchase
Subject to factory lead times
Engineered by Stauff, the 1020023611 is a Filter Element. Typical applications span hydraulics, marine, and wind energy environments. Stauff is recognized globally for engineering products that meet strict performance standards. This product meets relevant ISO and DIN standards.
$388.95$422.77
Available for Purchase
Subject to factory lead times
Part number 1020023632 from Stauff is a Filter Element. It is commonly found in wind energy, construction equipment, and mobile machinery applications. Stauff is recognized globally for engineering products that meet strict performance standards.
$486.74$529.06
Available for Purchase
Subject to factory lead times
Engineered by Stauff, the 1020023636 is a Filter Element. This product serves professionals across mobile machinery, hydraulics, and construction equipment sectors. As a leader in hydraulic components and fluid power accessories, Stauff manufactures every component to exacting standards.
$486.74$529.06
Available for Purchase
Subject to factory lead times
The Stauff 1020023641 is a Filter Element. This product serves professionals across mobile machinery, construction equipment, and hydraulics sectors. As a leader in hydraulic components and fluid power accessories, Stauff manufactures every component to exacting standards.
$486.74$529.06
Available for Purchase
Subject to factory lead times
Engineered by Stauff, the 1020023647 is a Filter Element. Typical applications span mobile machinery, hydraulics, and wind energy environments. Backed by Stauff's commitment to quality, the 1020023647 is built to perform under real-world conditions. It is designed to comply with applicable SAE and ISO requirements.
$486.74$529.06
Available for Purchase
Subject to factory lead times
The Stauff 1020023650 is a Filter Element. Typical applications span wind energy, hydraulics, and mobile machinery environments. The 1020023650 reflects Stauff's long-standing reputation for quality and innovation.
$346.43$376.55
Available for Purchase
Subject to factory lead times
The 1020023652 from Stauff is a Filter Element. This product serves professionals across construction equipment, marine, and wind energy sectors. The 1020023652 reflects Stauff's long-standing reputation for quality and innovation. This product meets relevant SAE and DIN standards.
$346.43$376.55
Available for Purchase
Subject to factory lead times
Part number 1020023657 from Stauff is a Filter Element. It is commonly found in marine, construction equipment, and industrial automation applications. Stauff products are trusted by engineers and specifiers worldwide. It is designed to comply with applicable DIN and ISO requirements.
$346.43$376.55
Available for Purchase
Subject to factory lead times
The Stauff 1020023661 is a Filter Element. This product serves professionals across construction equipment, wind energy, and industrial automation sectors. As a leader in hydraulic components and fluid power accessories, Stauff manufactures every component to exacting standards.
$643.96$699.95
Available for Purchase
Subject to factory lead times
The 1020023665 from Stauff is a Filter Element. This product serves professionals across construction equipment, wind energy, and mobile machinery sectors. As a leader in hydraulic components and fluid power accessories, Stauff manufactures every component to exacting standards. It is designed to comply with applicable SAE and ISO requirements.
$622.19$676.29
Available for Purchase
Subject to factory lead times
Engineered by Stauff, the 1020023668 is a Filter Element. Typical applications span industrial automation, wind energy, and construction equipment environments. Stauff products are trusted by engineers and specifiers worldwide.
$643.96$699.95
Available for Purchase
Subject to factory lead times
The 1020023677 from Stauff is a Filter Element. It is commonly found in wind energy, construction equipment, and mobile machinery applications. As a leader in hydraulic components and fluid power accessories, Stauff manufactures every component to exacting standards. It is designed to comply with applicable ISO and DIN requirements.
$403.86$438.97
Available for Purchase
Subject to factory lead times
Part number 1020023708 from Stauff is a Filter Element. Typical applications span wind energy, construction equipment, and industrial automation environments. The 1020023708 reflects Stauff's long-standing reputation for quality and innovation. This product meets relevant ISO and SAE standards.
$964.89$1,048.79
Available for Purchase
Subject to factory lead times
The Stauff 1020023713 is a Filter Element. It is commonly found in marine, mobile machinery, and wind energy applications. As a leader in hydraulic components and fluid power accessories, Stauff manufactures every component to exacting standards. This product meets relevant DIN and ISO standards.
$964.90$1,048.80
Available for Purchase
Subject to factory lead times
The Stauff 1020023718 is a Filter Element. Typical applications span mobile machinery, hydraulics, and wind energy environments. Stauff products are trusted by engineers and specifiers worldwide.
$964.89$1,048.79
Available for Purchase
Subject to factory lead times
Engineered by Stauff, the 1020018449 is a Filter Element Item 1020023704. This product serves professionals across construction equipment, mobile machinery, and marine sectors. As a leader in hydraulic components and fluid power accessories, Stauff manufactures every component to exacting standards.
$305.64$332.21
Available for Purchase
Subject to factory lead times
Engineered by Stauff, the 1020018450 is a Filter Element. It is commonly found in wind energy, construction equipment, and hydraulics applications. Stauff products are trusted by engineers and specifiers worldwide. It is designed to comply with applicable ISO and DIN requirements.
$1,024.37$1,113.44
Available for Purchase
Subject to factory lead times
Part number 1020019003 from Stauff is a Filter Element. This product serves professionals across hydraulics, construction equipment, and wind energy sectors. Stauff is recognized globally for engineering products that meet strict performance standards. This product meets relevant ISO and DIN standards.
$924.49$1,004.88
Available for Purchase
Subject to factory lead times
Part number 1020020192 from Stauff is a Rmf Element. Typical applications span mobile machinery, industrial automation, and marine environments. The 1020020192 reflects Stauff's long-standing reputation for quality and innovation.
$425.97$463.01
Available for Purchase
Subject to factory lead times
The Stauff 1020022779 is a Filter Element. This product serves professionals across wind energy, hydraulics, and mobile machinery sectors. As a leader in hydraulic components and fluid power accessories, Stauff manufactures every component to exacting standards. This product meets relevant ISO and DIN standards.
$726.86$790.06
Available for Purchase
Subject to factory lead times
The Stauff 1020023597 is a Filter Element. It is commonly found in mobile machinery, industrial automation, and marine applications. Backed by Stauff's commitment to quality, the 1020023597 is built to perform under real-world conditions.
$388.95$422.77
Available for Purchase
Subject to factory lead times
Part number 1020023599 from Stauff is a Filter Element No Stauff Label. Typical applications span construction equipment, industrial automation, and mobile machinery environments. Stauff products are trusted by engineers and specifiers worldwide.
$388.95$422.77
Available for Purchase
Subject to factory lead times
The Stauff 1020023602 is a Filter Element. This product serves professionals across mobile machinery, hydraulics, and construction equipment sectors. Backed by Stauff's commitment to quality, the 1020023602 is built to perform under real-world conditions.
$242.48$263.56
Available for Purchase
Subject to factory lead times
The 1020023607 from Stauff is a Filter Element. This product serves professionals across mobile machinery, marine, and industrial automation sectors. Backed by Stauff's commitment to quality, the 1020023607 is built to perform under real-world conditions. It is designed to comply with applicable ISO and DIN requirements.
$388.95$422.77
Available for Purchase
Subject to factory lead times
Engineered by Stauff, the 1020023611 is a Filter Element. Typical applications span hydraulics, marine, and wind energy environments. Stauff is recognized globally for engineering products that meet strict performance standards. This product meets relevant ISO and DIN standards.
$388.95$422.77
Available for Purchase
Subject to factory lead times
Part number 1020023632 from Stauff is a Filter Element. It is commonly found in wind energy, construction equipment, and mobile machinery applications. Stauff is recognized globally for engineering products that meet strict performance standards.
$486.74$529.06
Available for Purchase
Subject to factory lead times
Engineered by Stauff, the 1020023636 is a Filter Element. This product serves professionals across mobile machinery, hydraulics, and construction equipment sectors. As a leader in hydraulic components and fluid power accessories, Stauff manufactures every component to exacting standards.
$486.74$529.06
Available for Purchase
Subject to factory lead times
The Stauff 1020023641 is a Filter Element. This product serves professionals across mobile machinery, construction equipment, and hydraulics sectors. As a leader in hydraulic components and fluid power accessories, Stauff manufactures every component to exacting standards.
$486.74$529.06
Available for Purchase
Subject to factory lead times
Engineered by Stauff, the 1020023647 is a Filter Element. Typical applications span mobile machinery, hydraulics, and wind energy environments. Backed by Stauff's commitment to quality, the 1020023647 is built to perform under real-world conditions. It is designed to comply with applicable SAE and ISO requirements.
$486.74$529.06
Available for Purchase
Subject to factory lead times
The Stauff 1020023650 is a Filter Element. Typical applications span wind energy, hydraulics, and mobile machinery environments. The 1020023650 reflects Stauff's long-standing reputation for quality and innovation.
$346.43$376.55
Available for Purchase
Subject to factory lead times
The 1020023652 from Stauff is a Filter Element. This product serves professionals across construction equipment, marine, and wind energy sectors. The 1020023652 reflects Stauff's long-standing reputation for quality and innovation. This product meets relevant SAE and DIN standards.
$346.43$376.55
Available for Purchase
Subject to factory lead times
Part number 1020023657 from Stauff is a Filter Element. It is commonly found in marine, construction equipment, and industrial automation applications. Stauff products are trusted by engineers and specifiers worldwide. It is designed to comply with applicable DIN and ISO requirements.
$346.43$376.55
Available for Purchase
Subject to factory lead times
The Stauff 1020023661 is a Filter Element. This product serves professionals across construction equipment, wind energy, and industrial automation sectors. As a leader in hydraulic components and fluid power accessories, Stauff manufactures every component to exacting standards.
$643.96$699.95
Available for Purchase
Subject to factory lead times
The 1020023665 from Stauff is a Filter Element. This product serves professionals across construction equipment, wind energy, and mobile machinery sectors. As a leader in hydraulic components and fluid power accessories, Stauff manufactures every component to exacting standards. It is designed to comply with applicable SAE and ISO requirements.
$622.19$676.29
Available for Purchase
Subject to factory lead times
Engineered by Stauff, the 1020023668 is a Filter Element. Typical applications span industrial automation, wind energy, and construction equipment environments. Stauff products are trusted by engineers and specifiers worldwide.
$643.96$699.95
Available for Purchase
Subject to factory lead times
The 1020023677 from Stauff is a Filter Element. It is commonly found in wind energy, construction equipment, and mobile machinery applications. As a leader in hydraulic components and fluid power accessories, Stauff manufactures every component to exacting standards. It is designed to comply with applicable ISO and DIN requirements.
$403.86$438.97
Available for Purchase
Subject to factory lead times
Part number 1020023708 from Stauff is a Filter Element. Typical applications span wind energy, construction equipment, and industrial automation environments. The 1020023708 reflects Stauff's long-standing reputation for quality and innovation. This product meets relevant ISO and SAE standards.
$964.89$1,048.79
Available for Purchase
Subject to factory lead times
The Stauff 1020023713 is a Filter Element. It is commonly found in marine, mobile machinery, and wind energy applications. As a leader in hydraulic components and fluid power accessories, Stauff manufactures every component to exacting standards. This product meets relevant DIN and ISO standards.
$964.90$1,048.80
Available for Purchase
Subject to factory lead times
The Stauff 1020023718 is a Filter Element. Typical applications span mobile machinery, hydraulics, and wind energy environments. Stauff products are trusted by engineers and specifiers worldwide.
$964.89$1,048.79
Available for Purchase
Subject to factory lead times
FAQS
- Compressed air straight from a compressor contains three primary contaminants that must be removed before the air reaches pneumatic equipment, instruments, or products: solid particulates (dust, pipe scale, rust, and compressor wear debris), liquid water (condensed from atmospheric moisture during compression), and oil (from lubricant carryover in oil-lubricated compressors as liquid droplets, aerosols, and vapor). These contaminants damage pneumatic valves, cylinders, and instruments by causing corrosion, seal degradation, and clogging. In applications where compressed air contacts the product — food packaging, pharmaceutical manufacturing, electronics assembly, painting — contamination can cause product rejection, health hazards, and regulatory violations. Compressed air filtration uses a staged approach: a particulate filter removes solid particles, a coalescing filter removes liquid water and oil aerosols, and an adsorption (activated carbon) filter removes oil vapor and odors. The degree of filtration required depends on the application — ISO 8573-1 defines compressed air quality classes from Class 0 (highest purity) to Class 6 (general industrial) to help specify the appropriate filtration level.
- A coalescing filter removes liquid aerosols — tiny droplets of water and oil suspended in the compressed air stream — that are too small for a standard particulate filter to capture. The filter element is made of multiple layers of fine borosilicate glass fibers or similar coalescing media. As the aerosol-laden air passes through the element from the inside out, the micro-droplets collide with the fibers and progressively merge (coalesce) into larger and larger droplets. Once the droplets are large enough, gravity pulls them down to the bottom of the filter housing where they collect in a sump and are drained off — either manually or through an automatic drain. A properly selected coalescing filter can reduce oil aerosol content to 0.01 ppm and remove liquid water down to the aerosol level, though it does not remove water vapor (a compressed air dryer is needed for that). Coalescing filters are the workhorse of compressed air treatment systems and should be installed downstream of the aftercooler and water separator, and upstream of any air dryer.
- The proper sequence of compressed air treatment equipment follows the order in which contaminants are most effectively removed, with each stage protecting the next. Starting from the compressor discharge: first, an aftercooler cools the hot compressed air and condenses the bulk of the water vapor into liquid, which is removed by a moisture separator. Second, a particulate pre-filter (typically 3–5 micron) removes solid particles and protects the downstream coalescing filter from premature loading. Third, a coalescing filter (typically 0.01 micron) removes liquid water and oil aerosols down to trace levels. Fourth, if very dry air is required, a compressed air dryer (refrigerated, desiccant, or membrane type) reduces the dew point to the required level. Fifth, if oil-free air is required for food contact, pharmaceutical, or painting applications, an activated carbon adsorption filter removes oil vapor and odors that coalescing filters cannot capture. Finally, a point-of-use particulate filter at each machine or application provides a final safety barrier against any contaminants introduced by the distribution piping. Skipping stages or installing them out of order reduces performance and shortens element life.
- A particulate filter and a coalescing filter are both used in compressed air systems but remove different types of contaminants. A particulate filter removes solid particles — dust, pipe scale, rust, and compressor wear debris — from the air stream using a fibrous or pleated media element. Particles that are larger than the filter's rated pore size are trapped in or on the media. Particulate filters are available in various micron ratings, typically 1 to 25 microns for general service and down to 0.01 microns for high-purity applications. They do not effectively remove liquid water or oil in aerosol form. A coalescing filter is specifically designed to remove liquid aerosols — micro-droplets of water and oil that are suspended in the air stream as a mist. The coalescing media causes these tiny droplets to merge into larger droplets that drain by gravity. Coalescing filters also capture solid particles, but their primary function is aerosol removal. In a properly designed system, a particulate filter is installed upstream of the coalescing filter to protect the more expensive coalescing element from premature loading with solid debris.
- Compressed air filter sizing is based on the maximum air flow rate (measured in SCFM — standard cubic feet per minute), the operating pressure, and the allowable pressure drop across the filter. Every filter element has a rated flow capacity at a specific pressure and maximum recommended pressure drop — exceeding the rated flow causes excessive pressure drop, which wastes energy (every 2 psi of unnecessary pressure drop across a filter costs approximately 1% of compressor energy), reduces downstream tool and equipment performance, and can force contaminants through the media. To size correctly, determine the peak compressed air demand of all equipment downstream of the filter, select a filter housing and element combination whose rated flow capacity exceeds that demand at your operating pressure, and verify that the initial (clean element) pressure drop is acceptably low — typically less than 1–3 psi for a new element, leaving headroom for the differential pressure to increase as the element loads with contaminants. Also consider connection size — the filter's port size should match the distribution piping to avoid creating a flow bottleneck. Manufacturers publish sizing charts that make it straightforward to match flow rate, pressure, and connection size to the correct model.