The Bühler Technologies P2.2 AMEX Explosion-Proof Sample Gas Pump is a high-performance sample gas extraction instrument engineered by Bühler Technologies GmbH (Germany)—a recognized global authority in industrial sample gas conditioning systems. Certified to rigorous ATEX/Ex explosion protection standards, this pump is specially designed for safe operation in hazardous classified areas across petrochemical refineries, chemical processing facilities, metallurgy, and thermal power plants.

The Bühler P2.2 AMEX maintains a consistent and reliable sample gas flow from sampling probes through coolers and filtration units to analyzer sensors within CEMS installations. Its chemically inert pump head is manufactured from premium corrosion-resistant materials including PTFE, PVDF, or 1.4571 (316Ti) Stainless Steel, combined with a reinforced PTFE diaphragm. This construction guarantees complete immunity to aggressive and toxic gases such as SO2, SO3, NOx, HCl, HF, H2S, CO, CO2, and flammable organic vapors.

Equipped with an AMEX explosion-proof drive motor, the pump delivers smooth, spark-free performance for continuous 24/7 industrial duty. The intelligent modular pump head design allows fast, straightforward maintenance, enabling operators to inspect and replace diaphragms and check valves directly on-site to minimize process downtime.

• Manufacturer: Bühler Technologies GmbH
• Product Series / Model: P2.2 AMEX (Explosion-Proof Sample Gas Diaphragm Pump)
• Country of Origin: Germany
• Explosion Protection Certification: ATEX certified / Ex protection (suitable for hazardous Zone 1 / Zone 2 areas)
• Operating Principle: Electromechanical Explosion-Proof 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 AMEX Ex motor configuration)
• System Compatibility: High safety explosion-proof design, chemically inert, fully integrable into CEMS cabinets and hazardous area gas analysis panels.