The Bühler Technologies K-AGF-VA-23 Stainless Steel Coalescing Sample Gas Filter is a high-performance sample conditioning instrument manufactured by Bühler Technologies GmbH (Germany). Engineered specifically for demanding gas analysis applications, this filter excels in operating conditions involving high process pressures, elevated temperatures, and aggressive corrosive gases.

The key feature of the K-AGF-VA-23 model is its filter head constructed from premium 1.4571 Stainless Steel (316Ti). This material delivers exceptional mechanical strength, high pressure resistance, and superior chemical compatibility against aggressive media including SO2, SO3, NOx, CO, CO2, H2S, and solvent vapors. The filter bowl is available either in transparent borosilicate glass for convenient visual inspection of condensate collection or fully in 1.4571 stainless steel for high-pressure installations.

Operating on the advanced coalescing principle (inside-to-outside gas flow), the K-AGF-VA-23 captures fine acid mists and liquid aerosols, merging them into larger droplets that drain by gravity to the bottom port. Designed with minimal internal dead volume, the unit ensures rapid system response times, safeguarding delicate sensors and gas analyzers in continuous emission monitoring systems (CEMS).

• Manufacturer: Bühler Technologies GmbH
• Product Series / Model: K-AGF-VA-23 (Stainless Steel Coalescing Sample Gas Filter)
• Country of Origin: Germany
• Operating Principle: Coalescing filtration (simultaneous particulate and liquid aerosol separation)
• Filter Head Material: Stainless Steel 1.4571 (316Ti)
• Filter Bowl Material: Borosilicate Glass / Stainless Steel 1.4571 (316Ti)
• Gasket / Seal Material: Viton (FKM) / FFKM (optional high-temperature chemical resistant variants)
• Filter Element Type: Series 23 Coalescing Element (e.g., 23K, F-23K, S-23K)
• Flow Direction: Inside to Outside (In-to-Out coalescing flow)
• Retention / Fineness: 99.99% aerosol retention down to 0.1 µm - 2 µm
• Max Operating Pressure: 16 bar (with glass bowl) / 16 bar - 23 bar or higher (with stainless steel bowl)
• Max Operating Temperature: Up to +140°C (Glass bowl) / +180°C (Stainless steel bowl)
• Inlet / Outlet Port Connections: G 1/4" or NPT 1/4" female threads
• Condensate Drain Port: G 1/4" or NPT 1/4" female thread (bottom drain connection)
• Dead Volume: Approx. 30 ml to 40 ml (optimized for fast sample response time)
• Net Weight: Approx. 0.8 kg - 1.2 kg (depending on bowl selection)
• System Compatibility: High mechanical and thermal load capacity, fully integrable into CEMS, gas conditioning panels, and high-pressure analyzer systems.