The Bühler Technologies P2.2 ATEX Explosion-Proof Sample Gas Pump is an advanced gas sampling instrument engineered by Bühler Technologies GmbH (Germany)—a recognized global authority in sample gas conditioning systems. Designed and certified to meet stringent European ATEX safety directives, this pump guarantees reliable operation in hazardous environments classified as ATEX Zone 1 and Zone 2.

The Bühler P2.2 ATEX maintains consistent and accurate sample gas delivery from sample probes through conditioning units to gas analyzers within CEMS setups. Its chemically inert pump head is available in premium corrosion-resistant materials, including PTFE, PVDF, or 1.4571 (316Ti) Stainless Steel, combined with a PTFE-coated diaphragm. This ensures complete protection against aggressive and toxic gas constituents such as SO2, SO3, NOx, HCl, HF, H2S, CO, CO2, and flammable organic vapors.

Featuring an explosion-proof drive motor, the P2.2 ATEX delivers smooth, spark-free performance for continuous 24/7 duty in petrochemical and chemical refining plants. The modular pump head design facilitates straightforward maintenance, enabling fast diaphragm and valve replacements to minimize process downtime.

• Manufacturer: Bühler Technologies GmbH
• Product Series / Model: P2.2 ATEX (Ex-proof Sample Gas Diaphragm Pump)
• Country of Origin: Germany
• Explosion Protection Certification: ATEX II 2G Ex h IIC T4/T3 Gb (suitable for Zone 1 and Zone 2)
• Operating Principle: Explosion-Proof Electromechanical Diaphragm Pump
• Free Flow Rate: Max approx. 400 Nl/h (approx. 6.6 L/min)
• Max Operating Pressure: Max 1.5 bar - 2.0 bar relative
• Max Vacuum Capacity: Down to 0.3 bar absolute
• Wetted Materials: PTFE, PVDF, Viton (FKM), Stainless Steel 1.4571 (316Ti)
• Diaphragm Material: PTFE-coated EPDM
• Max Inlet Gas Temperature: Up to +70°C / +100°C (depending on head material)
• Ambient Operating Temperature: -20°C to +50°C
• Power Supply Options: 230V AC (50/60 Hz), 115V AC (50/60 Hz), or 24V DC (Ex variant)
• Power Consumption: Approx. 55W to 90W
• Inlet / Outlet Port Connections: G 1/4" or NPT 1/4" female threads
• Protection Class: IP 55 / IP 65
• Net Weight: Approx. 3.5 kg - 6.5 kg (depending on motor configuration)
• System Compatibility: High safety explosion-proof design, chemically inert, fully integrable into CEMS cabinets and hazardous area gas analysis panels.