Sample gas filters for gas filtration by Bühler Technologies

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Sample gas filters are used to filter finer dust from your gas analyzer system. Even when the contaminants have been removed at the extraction point through effective particle filtration inside the sample gas probe, there is still a risk of finer dust entering the gas measuring system. For this reason effective analysis sample gas filters are required, but also for use in stationary or portable sample gas conditioners. These can be in-line filters or panel filters with housings made from various material combinations. Equipped with easy to change filter elements with various retention rates and an adequate filter size they can be used for a wide range of applications.

Video break down of fine mesh sample gas filter AGF-PV-30

Sample gas filters for gas filtration by Bühler Technologies YouTube video
Sample gas filters for gas filtration by Bühler Technologies demo video

Bühler Technologies sample gas filters product range

Heated Sample Gas Filter AHF-22

Heated Sample Gas Filter AHF-22
Heated Sample Gas Filter AHF-22

Gas analysis is a complex field. The sample gas to be analyzed must be extracted and handled under quite diverse conditions to yield representative and reliable analysis results. One disturbance variable which must also be eliminated is aerosols.

The aqueous suspended particles can easily be removed from the gas by coagulation using special filter matrices. During this process, the tiny aerosols accumulate on the fibers of the filter matrix through collision, forming drops increasing in size. Once large enough, the condensate which forms drains into the filter bowl and is then removed. Model K-AGF-PV-30-A has the PVDF and glass housing from the AGF-PV filter series, using suitable fittings to adapt it for the coagulation function. The easy installation and the Unique quick-release fastener are additional features of this model.

Specifications

  • Simple, sturdy construction
  • Easy to install
  • Tool-less filter element change
  • No disassembly required to replace filter
  • Controlled or self-regulating heater
  • Calibrating gas connection optional
  • No thermal bridges

Coalescence Gas Filter K-AGF-PV-30-A

Coalescence Sample Gas Filter K-AGF-PV-30-A
Coalescence Gas Filter K-AGF-PV-30-A

Gas analysis is a complex field. The sample gas to be analyzed must be extracted and handled under quite diverse conditions to yield representative and reliable analysis results. One disturbance variable which must also be eliminated is aerosols.

Specifications

The aqueous suspended particles can easily be removed from the gas by coagulation using special filter matrices. During this process, the tiny aerosols accumulate on the fibers of the filter matrix through collision, forming drops increasing in size. Once large enough, the condensate which forms drains into the filter bowl and is then removed. Model K-AGF-VA-23 has the housing from the AGF-VA filter series made from stainless steel and with the respective fittings to adapt it for the coagulation function. The easy installation and the Unique quick-release fastener are additional features of this model.

  • Bühler Unique quick-release fastener
  • Very quick and easy filter changes without tools
  • Variable wall mount
  • Additional connection inside the filter head (G1/4) for moisture detector or bypass
  • Suitable for connecting automatic condensate drains

Fine Mesh Sample Gas Filter AGF-VA-23

Fine Mesh Sample Gas Filter AGF-VA-23
Fine Mesh Sample Gas Filter AGF-VA-23

Even if the particular contaminant has already been removed at the extraction point inside the through effective particle filtration gas sampling probe, in long or branched sample gas line there is a risk of secondary contamination.

Additional filters are therefore often installed at the point where the sample gas enters the analysis system and also before delicate system components. The filter housings must be made of corrosion-resistant, non-absorbent materials, easy to install and easy to maintain. They should further be compatible with various filter elements.

The AGF-VA-23 series is completely made from stainless steel and features the Bühler Unique quick-release fastener. The filter head has an additional connection for installing a moisture detector. A variety of materials is available based on the application.

Specifications

  • Bühler Unique quick-release fastener
  • Very quick and easy filter changes without tools
  • Low dead volume
  • Variable wall-mounting via spacer block
  • Ability to (auto) Condensate drain through connection thread (G3/8) inside the filter cover
  • Bypass connection inside the filter head (G1/4), connection option for moisture detector or ventilation

Coalescence Gas Filter K-AGF-VA-350

Coalescence Sample Gas Filter K-AGF-VA-350
Coalescence Gas Filter K-AGF-VA-350

In specific gas technology applications, high pressure keeps the gas inside the systems. The undesirable disturbance variables also include aerosols in the gas in these types of systems. The aqueous suspended particles can easily be removed from the gas by coagulation using special filter matrices.

During this process, the tiny aerosols accumulate on the fibres of the filter matrix through collision, forming drops increasing in size. Once large enough, the condensate which forms drains into the filter bowl and is then removed. Model K-AGF-VA-350 has a stainless steel housing for operating pressures up to 350 bar/5076 psi.

Specifications

  • Very quick and easy filter changes without tools
  • Low dead volume
  • Variable wall mounting via mounting bracket
  • Ability to (auto) drain condensate via threaded connection (NPT 1/4″) inside filter cover

Water Stop fine mesh filter

Water Stop fine mesh Sample Gas Filter
Water Stop fine mesh filter

The Water Stop fine mesh filter protects the gas analyzer from liquids, aerosols and particles. The filter installs in the tubing (PTFE) or piping (stainless steel) directly before the gas analyzer.

Specifications

  • Reliable gas analyzer protection from condensate and dust
  • Compact size
  • Oil repellent membranes (stainless steel version)
  • Bypass function ready (stainless steel version)
  • Easy membrane replacement (stainless steel version)

Ambient Air Sample Gas Filter RAF-PV-30

Ambient air Sample Gas Filter RAF-PV-30
Ambient air Sample Gas Filter RAF-PV-30

In ambient air monitoring (workshops, storage facilities, etc.) any particles and particular matter must be removed from the sample gas. The high quality ambient air filter RAF-PV-30 has a transparent housing to easily identify the contamination level. With the Bühler Unique quick-release fastener filter elements can be changed within minutes.

Specifications

  • Bühler Unique quick-release fastener
  • Very quick and easy filter changes without tools
  • Low dead volume
  • Variable wall mount included
  • Option to drain condensate through GL25 screw connection in the filter glass (models AGF-PV-…-A)
  • Bypass connection in the filter head (G1/4), connection options for bypass, moisture detector or ventilation

Fine mesh Gas Filter AGF-PV-30

Fine mesh Sample Gas Filter AGF-PV-30
Fine mesh Gas Filter AGF-PV-30

Even if the particular contaminant has already been removed at the extraction point through effective particle filtration inside the gas sampling probe, in long or branched sample gas line there is a risk of secondary contamination.

Additional filters are therefore often installed at the point where the sample gas enters the analysis system and also before delicate system components. The filter housings must be made of corrosion-resistant, non-absorbent materials, easy to install and easy to maintain. They should further be compatible with various filter elements.

The AGF-PV-30 series features a PVDF and glass housing and is equipped with the Bühler Unique quick-release fastener. The filter head has an additional connection for installing a moisture detector. A variety of materials is available based on the application.

Specifications

  • Bühler Unique quick-release fastener
  • Very quick and easy filter changes without tools
  • Low dead volume
  • Variable wall mount included
  • Option to drain condensate through GL25 screw connection in the filter glass (models AGF-PV-…-A)
  • Bypass connection in the filter head (G1/4), connection options for bypass, moisture detector or ventilation

Fine mesh Sample Gas Filter AGF-T-30

Fine mesh Sample Gas Filter AGF-T-30
Fine mesh Sample Gas Filter AGF-T-30

Even if the particular contaminant has already been removed at the extraction point through effective particle filtration inside the gas sampling probe, in long or branched sample gas line there is a risk of secondary contamination. Additional filters are therefore often installed at the point where the sample gas enters the analysis system and also before delicate system components.

The filter housings must be made of corrosion-resistant, non-absorbent materials, easy to install and easy to maintain. They should further be compatible with various filter elements.

The AGF-T-30 series has a PTFE and glass housing. The filter head has an additional connection for installing a moisture detector. A variety of materials is available based on the application.

Specifications

  • Full PTFE housing top
  • Maximum chemical resistance, for use in highly aggressive mediums
  • Filter fineness of 2 μm or 25 μm with sintered PTFE elements
  • No absorption of trace gasses
  • Quick response time in systems due to low dead volume
  • Variable wall mount

Built-In Gas Filter AGF-FE

Built-In Sample Gas Filter AGF-FE
Built-In Gas Filter AGF-FE

Especially in emission control via portal analysis systems the sample gas cannot always be extracted without particle contamination. The necessary conditioning systems must be compact and lightweight and therefore require small and light system components.
We offer special filter housings for these applications and for installation into a standard 19” rack. The AGF-FE filters screw into the front panel with sample gas connections at the back.

Specifications

  • Front panel installation
  • Easy to install
  • Large filter surface
  • Easy element replacement

Built-In Sample Gas Filter AGF-FE-4

Built-In Sample Gas Filter AGF-FE-4
Built-In Sample Gas Filter AGF-FE-4

In extractive emission monitoring the extracted sample gases are not only contaminated with particles but are often also corrosive. This requires particle filters made from particularly corrosion-resistant material combinations. The AGF-FE-4 panel filter was designed specifically for these applications in mobile emission monitoring.

Specifications

  • Front panel installation
  • Easy to install
  • Large filter surface
  • Easy element replacement
  • Acid-proof materials

Panel Gas Filter AGF-FA-5

Panel Sample Gas Filter AGF-FA-5
Panel Gas Filter AGF-FA-5

Especially in emission control via portal analysis systems the sample gas cannot always be extracted without particle contamination. The necessary conditioning systems must be compact and lightweight and therefore require small and light system components.
We offer special filter housings for these applications and for installation into a standard 19” rack.
This filter is based on the AGF-FE-4 but features a mounting plate for integrating a moisture detector.

Specifications

  • Front panel
  • Easy to install
  • Large filter surface
  • Easy element replacement
  • Acid-proof materials
  • Bypass connection in the filter head (G1/4), connection options for bypass, moisture detector or ventilation

Coalescence Sample Gas Filter K-AGF-VA-23

Coalescence Sample Gas Filter K-AGF-VA-23
Coalescence Sample Gas Filter K-AGF-VA-23

Gas analysis is a complex field. The sample gas to be analyzed must be extracted and handled under quite diverse conditions to yield representative and reliable analysis results. One disturbance variable which must also be eliminated is aerosols.

The aqueous suspended particles can easily be removed from the gas by coagulation using special filter matrices. During this process, the tiny aerosols accumulate on the fibers of the filter matrix through collision, forming drops increasing in size. Once large enough, the condensate which forms drains into the filter bowl and is then removed.

Model K-AGF-VA-23 has the housing from the AGF-VA filter series made from stainless steel and with the respective fittings to adapt it for the coagulation function. The easy installation and the Unique quick-release fastener are additional features of this model.

Specifications

  • Bühler Unique quick-release fastener
  • Very quick and easy filter changes without tools
  • Low dead volume
  • Variable wall-mounting via spacer block
  • Condensate drain through connection thread (G3/8) inside the filter cover
  • Bypass connection inside the filter head (G1/4)

Fine Mesh Gas Filter AGF-VA-350

Fine Mesh Sample Gas Filter AGF-VA-350
Fine Mesh Gas Filter AGF-VA-350

Even if the particular contaminant has already been removed at the extraction point inside the through effective particle filtration gas sampling probe, in long or branched sample gas line there is a risk of secondary contamination.

Additional filters are therefore often installed at the point where the sample gas enters the analysis system and also before delicate system components. The filter housings must be made of corrosion-resistant, non-absorbent materials, easy to install and easy to maintain. They should further be compatible with various filter elements. This particle filter with corrosion-resistant stainless steel housing is suitable for high pressure gas applications up to 350 bar/5076 psi.

Specifications

  • Very quick and easy filter changes without tools
  • Low dead volume
  • Variable wall mounting via mounting bracket
  • Ability to (auto) drain condensate via threaded connection (NPT 1/4″) inside filter cover

Ad-Absorption Sample Gas Filter BF2-S

Ad-Absorption Sample Gas Filter BF2-S
Ad-Absorption Sample Gas Filter BF2-S

Using so-called “self-cleaning” gas filters is worth considering for sample gas systems where secondary contamination primarily consisting of larger particles are to be expected.

The functional principle of these filters is that of the ‘Cross Flow’ process. Here a partial stream is continuously adequate for analysis is continuously extracted from the main sample gas flow. Inside the housing, the main stream is forced along the filter element in a spiral. The dirt particles from the partial stream deposited on the surface of the element are carried along by the main stream and discharged. The continuous discharge of dirt deposit results in a very long filter element life, thus low maintenance.
The BF2-S was developed specifically for these applications.

Specifications

  • For fluids and gasses
  • Long filter life
  • Low maintenance
  • Compact installation
  • Pipe fitting included

Ad-Absorption Gas Filter ADF-PV-30-L

Ad-Absorption Sample Gas Filter ADF-PV-30-L
Ad-Absorption Gas Filter ADF-PV-30-L

This sample gas pump has Gas analysis is a complex field. The sample gas to be analyzed must be extracted and handled under quite diverse conditions to yield representative and reliable analysis results.

There frequently is a need to remove gaseous components from the sample gas through adsorption/absorption. The ADF-PV-30 is a housing suitable for this application. Made from PVDF and glass and equipped with Unique quick-release fastener, it can be filled with various adsorbents/absorbents. The bottom gas inlet ensures sufficient contact times.

Specifications

  • Bühler Unique quick-release fastener
  • Quick and easy filter material changes without tools
  • Variable wall mount

Wash bottle WF-AGF-PV-30

Wash bottle WF-AGF-PV-30
Wash bottle WF-AGF-PV-30

Gas analysis is a complex field. The sample gas to be analyzed must be extracted and handled under quite diverse conditions to yield representative and reliable analysis results.

There frequently is a need to remove gaseous components from the sample gas by washing these out.

The WF-AGF-PV-30 wash bottle is a product suitable for this purpose. The wash bottle is filled with water or another suitable medium to wash out interfering components.

It is made from non-corrosive PVDF and glass. The Unique quick-release fastener allows for easy medium changes. The bottom gas inlet ensures sufficient contact times.

An optional version with bubbler ensures the gas is finely dispersed in the washing medium.

Specifications

  • Bühler Unique quick-release fastener
  • Quick and easy washing medium changes without tools
  • Variable wall mount
  • Bubbler optional

Housing for Absorption Sample Gas Filter ADF-170 ADF-300 (Ammonia Filter)

Housing for Absorption Sample Gas Filter ADF-170 ADF-300 (Ammonia Filter)
Housing for Absorption Sample Gas Filter ADF-170 ADF-300 (Ammonia Filter)

There frequently is a need to remove gaseous components from the sample gas through adsorption/absorption. For applications where the incidence of interfering components may fluctuate or the materials must have a long lifetime, the ADF-170/300 model housings are the top choice.

Specifications

  • All-purpose, in various sizes
  • Available with high-efficiency NH3 absorber filling
  • Up to 38.000 hours life time for NH3 absorber
  • Quick and easy maintenance (tool-less)
  • Chemical and temperature-resistant materials
  • Condensate output optional

In addition to the above products, ASaP B.V. can quickly deliver all spare parts for sample gas pumps, coolers, and probes.

  • Filters
  • Filter elements
  • Condensate Drains
  • Tubes (hoses)
  • Valves
  • Pump Heads
  • Bellows
  • O-rings
  • And everything else

Contact our sample gas filters specialist directly

You can contact us is you have a question about sample gas filters when it suits you. See our specialist’s contact information below.

Gertjan Mastenbroek - ASaP - Address and contact persons

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sample gas filters practical solutions

With sample gas filters ASaP offers practical total solutions. The well-established and complementary ASaP analytical package of services and products is an important contribution to the right solutions for your analytical needs. Moreover, the team spirit and the cooperation with specific partners give us the opportunity to design, build, locally install and commission tailor made sample probes, analyzer systems and shelters for you. All these products and systems can be built according to the latest industry guidelines and certifications.

ASaP is the reputable provider of analytical solutions; We can provide you with a full-service package for including engineering, manufacturing, software development, offshore service, gas analyzers, system integration, and cutting-edge bio-LNG or LNG Custody Transfer Systems (CTMS), LNG Probe-Vaporizers, advanced LNG Sampling Systems, and precise natural gas analysis systems. You are kindly invited to consult our team about sample gas filters or any analytical challenge!

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