The Bühler Technologies GAS 222.20 Gas Sampling Probe is an unheated extraction unit specifically engineered for high particulate gas streams by Bühler Technologies (Germany). Belonging to the acclaimed GAS 222 product line, the GAS 222.20 serves as a rugged primary sampling interface for Continuous Emission Monitoring Systems (CEMS) and industrial process gas analyzers operating in heavy dust environments.

A primary design feature of the Bühler GAS 222.20 is its spacious probe chamber capable of housing a large-surface-area filter element. This expanded filtration area significantly reduces dust loading velocity across the filter surface, preventing premature filter clogging and extending service intervals between maintenance cycles. The probe features a quick-release clamp mechanism that enables technicians to inspect or replace the filter element quickly without requiring special tools.

Although designed as an unheated probe variant, the GAS 222.20 includes an integrated backpurge (blowback) port. This allows plant engineers to connect an automated high-pressure compressed air supply to clean the outer filter surface periodically, maintaining consistent sample extraction flow rates back to the analyzer shelter.

Constructed from heavy-duty corrosion and abrasion-resistant materials such as stainless steel 1.4571 (SS316Ti), Hastelloy, or PTFE-coated components, the GAS 222.20 ensures long-term operational durability. Manufactured 100% in Germany to strict ISO quality standards, the Bühler Technologies GAS 222.20 is an economical, high-performance sampling solution for non-condensing gas sampling applications in cement kilns, coal handling facilities, metallurgy, and industrial dust extraction systems.

• Manufacturer: Bühler Technologies
• Origin: Germany
• Product Series: GAS 222 Series
• Model: GAS 222.20
• Key Feature: Unheated Gas Sampling Probe for High Dust Load Applications
• Filter Mechanism: Large surface filter element with tool-free quick-release clamp
• Filter Element Options: Ceramic / PTFE / Stainless Steel Mesh (1 µm to 10 µm porosity)
• Wetted Materials: Stainless Steel 1.4571 (SS316Ti) / Hastelloy / PTFE
• 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
• Ingress Protection Rating: IP55 / IP65