The Bühler Technologies P2.84 Dual-Head Sample Gas Pump is a high-performance diaphragm gas extraction pump engineered by Bühler Technologies GmbH (Germany)—a recognized global leader in industrial sample gas conditioning systems. This pump is designed to reliably extract, transport, and maintain stable sample gas streams for continuous emission monitoring systems (CEMS).

The key technical highlight of the P2.84 model lies in its dual-head architecture (Dual Pump Heads) driven by a single electric motor, combined with integrated bypass valves located directly on each pump head. This configuration provides ultimate versatility: operators can handle two completely separate sample gas channels simultaneously, or connect the heads in series or parallel for increased pressure delivery or doubled flow rate, while conveniently adjusting internal pressure and flow without requiring external relief valve assemblies.

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 resistance against aggressive gas components including SO2, SO3, NOx, HCl, HF, H2S, CO, CO2, and organic solvent vapors. Delivering low vibration and smooth continuous 24/7 performance, the P2.84 is an ideal solution for complex multi-stream CEMS gas analysis panels.

• Manufacturer: Bühler Technologies GmbH
• Product Series / Model: P2.84 (Dual Head Sample Gas Diaphragm Pump with Bypass Valve)
• Country of Origin: Germany
• Pump Head Design: Dual independent pump heads with integrated bypass valves
• Special Feature: Integrated bypass valves for direct pump head flow/pressure regulation
• Operating Principle: Electromechanical Dual-Head Diaphragm Pump with bypass
• 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 +60°C
• Power Supply Options: 230V AC (50/60 Hz), 115V AC (50/60 Hz), or 24V DC
• Power Consumption: Approx. 60W to 90W
• Inlet / Outlet Port Connections: G 1/4" or NPT 1/4" female threads (4 separate ports)
• Protection Class: IP 20 / IP 40 / IP 55 (depending on housing version)
• Net Weight: Approx. 3.2 kg - 4.5 kg
• System Compatibility: Dual-channel versatility with integrated flow adjustment, chemically inert gas path, fully integrable into CEMS conditioning panels and multi-stream gas analysis cabinets.