The Bühler Technologies P4.83 Dual-Head Sample Gas Pump is a heavy-duty, high-capacity diaphragm extraction pump from the P4-series engineered by Bühler Technologies GmbH (Germany)—a recognized global leader in industrial sample gas conditioning systems. The P4.83 model is specifically designed for large-scale continuous emission monitoring systems (CEMS) requiring high flow rates, long sampling line distances, or multi-stream analyzer feeding.

The key technical highlight of the P4.83 model lies in its dual-head architecture (Dual Pump Heads) driven by a powerful heavy-duty motor assembly. This configuration offers ultimate operational versatility: operators can handle two completely separate sample gas channels simultaneously, or connect the heads in parallel to double the sample flow capacity, or in series to maximize vacuum and pressure performance for extended sample lines.

Both chemically inert pump heads are constructed from premium corrosion-resistant materials such as PTFE, PVDF, or 1.4571 (316Ti) Stainless Steel combined with reinforced PTFE-coated diaphragms. This guarantees complete immunity against aggressive sample gas components including SO2, SO3, NOx, HCl, HF, H2S, CO, CO2, and organic solvent vapors. Delivering robust performance and smooth continuous 24/7 operation, the P4.83 is an ideal solution for complex high-flow CEMS gas analysis panels in heavy industrial plants.

• Manufacturer: Bühler Technologies GmbH
• Product Series / Model: P4.83 (Heavy Duty Dual Head High-Flow Sample Gas Diaphragm Pump)
• Country of Origin: Germany
• Pump Head Design: Dual independent pump heads (2 separate gas channels)
• Operating Principle: Heavy Duty Electromechanical Dual-Head Diaphragm Pump
• Free Flow Rate: Approx. 2x 400 Nl/h or up to 2x 800 Nl/h (depending on parallel/series connection)
• Max Operating Pressure: Max 2.0 bar - 2.5 bar relative
• Max Vacuum Capacity: Down to 0.2 bar - 0.3 bar absolute
• Wetted Materials: PTFE, PVDF, Viton (FKM), Stainless Steel 1.4571 (316Ti)
• Diaphragm Material: Reinforced 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 400V 3-phase AC
• Power Consumption: Approx. 100W to 150W
• Inlet / Outlet Port Connections: G 1/4" or G 3/8" female / NPT threads (4 separate ports)
• Protection Class: IP 54 / IP 55
• Net Weight: Approx. 5.5 kg - 7.5 kg
• System Compatibility: High flow capacity, dual-channel versatility, excellent chemical resistance, fully integrable into large industrial CEMS shelters and multi-stream gas conditioning systems.