The Bühler Technologies AGF-VA-23 Stainless Steel Sample Gas Filter is a high-grade particulate filtration instrument designed by Bühler Technologies GmbH (Germany)—a global leader in sample gas conditioning systems. This filter is engineered to reliably eliminate fine dust particles, fly ash, and solid mechanical debris from sample gas streams before reaching sensitive analyzers, safeguarding CEMS system integrity.

The filter head and body of the AGF-VA-23 model are precision-machined from 1.4571 Stainless Steel (316Ti). This alloy offers outstanding mechanical strength, high operating pressure and temperature resistance, and superior chemical compatibility when exposed to aggressive gases such as SO2, SO3, NOx, HCl, H2S, CO, and CO2. The filter bowl is available either in transparent borosilicate glass for easy visual inspection of element contamination or completely in 1.4571 stainless steel for high-pressure duty.

Designed with an optimized internal gas path, the AGF-VA-23 maintains an extremely low dead volume, ensuring rapid analyzer response times for real-time process monitoring. The ergonomic threaded design allows quick, tool-free filter element replacement during routine field maintenance.

• Manufacturer: Bühler Technologies GmbH
• Product Series / Model: AGF-VA-23 (Advanced Stainless Steel Sample Gas Filter)
• Country of Origin: Germany
• Function: Particulate & dust removal for sample gas analyzer protection
• Filter Head Material: Stainless Steel 1.4571 (316Ti)
• Filter Bowl Material: Heat-resistant Borosilicate Glass / Stainless Steel 1.4571 (316Ti)
• Gasket / Seal Material: Viton (FKM) / FFKM (optional high-temperature chemical resistant variants)
• Filter Element Type: Series 23 Filter Element (e.g., F-23, S-23, stainless steel / PTFE elements)
• Flow Direction: Outside to Inside (Out-to-In standard particle filtration)
• Filter Retention / Fineness: 2 µm to 25 µm (depending on selected filter element)
• Max Operating Pressure: 16 bar (with glass bowl) / 16 bar - 25 bar (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 Connection: 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 pressure and thermal endurance, fully integrable into CEMS gas lines, sample gas coolers, and industrial analyzer cabinets.