The Bühler Technologies GAS 222.11 Gas Sampling Probe is a specialized variant within the renowned GAS 222 product family developed by Bühler Technologies (Germany). Serving as an essential primary extraction interface for industrial gas analysis systems and Continuous Emission Monitoring Systems (CEMS), the GAS 222.11 features an integrated mechanical shut-off valve (ball valve) built directly into the probe assembly.

The primary engineering advantage of the Bühler GAS 222.11 is its integrated process isolation capability. The shut-off valve allows plant operators to isolate the sample line directly at the process tap without shutting down the main line or stack. This enables safe, rapid filter element inspection, cleaning, or replacement without risk of exposure to hazardous, toxic, or high-pressure process gases, significantly enhancing workplace safety and reducing operational downtime.

In terms of material construction, the GAS 222.11 is crafted from heavy-duty corrosion-resistant materials such as stainless steel 1.4571 (SS316Ti), Hastelloy, or PTFE. The internal high-capacity filter element effectively strips out fine particulate matter from the sample stream, protecting downstream analytical equipment. The probe also supports high-pressure backpurge connections for periodic automated filter blowback cleaning.

Manufactured in Germany under rigorous ISO quality standards, the Bühler Technologies GAS 222.11 is the preferred sampling probe choice for high-risk gas extraction applications under positive pressure or involving toxic flue gases across thermal power generation, cement manufacturing, chemical processing, and incineration plants.

• Manufacturer: Bühler Technologies
• Origin: Germany
• Product Series: GAS 222 Series
• Model: GAS 222.11
• Key Feature: Gas Sampling Probe with Integrated Process Shut-off Valve
• Filter Element Options: Ceramic / PTFE / Stainless Steel Mesh (1 µm to 10 µm porosity)
• Wetted Materials: Stainless Steel 1.4571 (SS316Ti) / Hastelloy / PTFE
• Isolation Valve Type: Integrated Ball Valve / Mechanical Process Shut-off
• Sample Gas Process Temperature: Up to 600°C / 1000°C / 1400°C (depending on sampling tube selection)
• Probe Body Temperature: Up to 200°C max
• Max Operating Pressure: Up to 6 bar
• Flange Connection: DN65 PN6 / ANSI 3" 150 lbs (or custom flange configurations)
• Sample Gas Outlet Connection: Female thread G 1/4" or NPT 1/4"
• Backpurge Feature: Integrated compressed air blowback connection
• Explosion Protection: ATEX Zone 1 / Zone 2 compliant variants available
• Ingress Protection Rating: IP55 / IP65