The Bühler Technologies GAS 222.15 Heated Gas Sampling Probe is an advanced extraction device engineered for demanding gas analysis and Continuous Emission Monitoring Systems (CEMS) by Bühler Technologies (Germany). Belonging to the renowned GAS 222 Series, the GAS 222.15 combines two essential engineering features: an electrically heated probe body with a self-regulating heating element, and an integrated process shut-off valve.

A key operational advantage of the Bühler GAS 222.15 is its integrated heating system. By maintaining the probe body at a constant elevated temperature between 180°C and 200°C, the unit effectively prevents water vapor condensation and acid dew point fallouts when sampling corrosive flue gases containing SO2, NOx, HCl, or HF. This eliminates sample line corrosion, prevents filter cake mudding, and ensures sample integrity prior to entering downstream analytical instrumentation.

Furthermore, the GAS 222.15 incorporates an integrated mechanical shut-off valve (ball valve) directly on the probe body. This process isolation feature allows field maintenance personnel to isolate the sample line directly at the stack interface without shutting down main plant operations. Filter element inspection, cleaning, or replacement can be conducted safely and rapidly without exposing technicians to hazardous, toxic, or high-temperature process gas streams.

Constructed from heavy-duty, corrosion-resistant materials such as stainless steel 1.4571 (SS316Ti), Hastelloy, or PTFE coatings, the GAS 222.15 includes a high-capacity particulate filter element and a backpurge connection for automated compressed air blowback. Manufactured in Germany to rigorous quality standards, the Bühler Technologies GAS 222.15 is the preferred sampling probe for moist flue gas extraction in coal-fired power stations, cement kilns, petrochemical plants, and waste incineration facilities.

• Manufacturer: Bühler Technologies
• Origin: Germany
• Product Series: GAS 222 Series
• Model: GAS 222.15
• Key Feature: Electrically Heated Gas Sampling Probe with Integrated Process Shut-off Valve
• Heating System: Electrically heated with self-regulating heating element
• Probe Body Temperature: Maintained at ~180°C to 200°C (prevents acid dew point condensation)
• Heating Power Supply: 115V / 230V AC, 50/60 Hz
• Process Isolation Valve: Integrated Ball Valve / Mechanical Process Shut-off
• 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)
• 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 compliant variants available (optional)
• Ingress Protection Rating: IP55 / IP65