The Bühler GAS 222.35 Heated Gas Sampling Probe is a specialized industrial sample extraction unit engineered by Bühler Technologies GmbH (Germany). Belonging to the renowned GAS 222 series, this probe is specifically designed for extreme operating environments characterized by heavy dust loads and high process temperatures in Continuous Emission Monitoring Systems (CEMS) and industrial process control applications.

A key technical feature of the GAS 222.35 model is its factory-integrated pneumatic blowback valve directly on the probe head assembly. This enables automated, high-pressure backflushing of compressed air to clear accumulated dust and particulate matter from the internal filter element (Ceramic or SS316L stainless steel) without requiring external solenoid valve manifolds. Automated periodic blowback prevents filter blinding, maintains consistent sample gas flow, and substantially reduces routine maintenance requirements.

Furthermore, the probe features an integrated self-regulating electric heating element that maintains a uniform temperature of up to 200°C (392°F). Continuous heating prevents moisture condensation, acid dew point drop, and line corrosion, preserving sample gas integrity prior to analyzer delivery. Combined with a tool-free, quick-release filter cover mechanism (Easy-Lock System), the Bühler GAS 222.35 delivers continuous 24/7 reliability and minimal operational cost for thermal power, cement, chemical, and waste-to-energy facilities.

• Manufacturer: Bühler Technologies GmbH
• Country of Origin: Germany
• Product Series: Heated Gas Sampling Probe Series for High Dust Loads with Blowback Valve
• Model: GAS 222.35
• Heating Temperature: Self-regulating, maintaining a constant temperature up to 200°C (392°F)
• Maximum Inlet Sample Gas Temperature: Up to 600°C (1112°F) (Depending on optional sampling tube selected)
• Blowback Valve: Factory-integrated pneumatic solenoid blowback valve on probe head
• Filter Replacement Mechanism: Tool-free Easy-Lock quick-release cover
• Maximum Operating Pressure: 6 bar (87 psi)
• Ambient Temperature Range: -20°C to +60°C
• Wetted Materials: Stainless Steel 1.4571 (SS316Ti), Ceramic, FKM
• Internal Filter Element: Ceramic or SS316L Stainless Steel, standard pore sizes 2 µm / 5 µm
• Blowback System: Integrated automated backpurge mechanism for online filter cleaning
• Calibration Connection: Integrated test gas port for system integrity validation
• Mounting Flange: DN65 PN6 or ANSI 3" 150 lbs
• Power Supply: 115V AC or 230V AC, 50/60 Hz
• Ingress Protection Rating: IP55 / IP65 (Outdoor weather-proof design)