The Bühler Technologies P2.72 ATEX Explosion-Proof Dual-Head Sample Gas Pump is an advanced gas sampling instrument engineered by Bühler Technologies GmbH (Germany)—a recognized global authority in industrial sample gas conditioning systems. Certified to meet European ATEX safety directives, this pump ensures completely safe operation in hazardous classified areas (Zone 1 and Zone 2).

The key feature of the P2.72 ATEX model is its dual-head design (Dual Pump Heads) driven by a single explosion-proof motor. This configuration offers exceptional operational flexibility: it can handle two completely separate sample gas lines simultaneously, or the heads can be connected in series for higher pressure performance, or in parallel to double the sample gas flow capacity for demanding CEMS analyzers.

Both chemically inert pump heads are constructed from premium corrosion-resistant materials such as PTFE, PVDF, or 1.4571 (316Ti) Stainless Steel combined with PTFE-coated diaphragms. This guarantees complete immunity against aggressive gas components including SO2, SO3, NOx, HCl, HF, H2S, CO, CO2, and flammable organic vapors. Driven by a spark-free Ex motor, it delivers continuous 24/7 duty for multi-stream gas analysis systems in hazardous environments.

• Manufacturer: Bühler Technologies GmbH
• Product Series / Model: P2.72 ATEX (Ex-proof Dual Head 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)
• Pump Head Design: Dual independent pump heads (2 separate gas channels)
• Operating Principle: Explosion-Proof Electromechanical Dual-Head Diaphragm Pump
• Free Flow Rate: Approx. 2x 280 Nl/h or up to 2x 400 Nl/h (depending on parallel/series connection)
• 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. 60W to 100W
• Inlet / Outlet Port Connections: G 1/4" or NPT 1/4" female threads (4 separate ports)
• Protection Class: IP 55 / IP 65
• Net Weight: Approx. 4.2 kg - 7.2 kg (depending on motor configuration)
• System Compatibility: ATEX explosion-proof certified, dual-channel versatility, chemically inert gas path, fully integrable into CEMS cabinets and hazardous area multi-stream gas analysis panels.