The Bühler Technologies P2.4 Sample Gas Pump is a high-performance diaphragm extraction pump engineered by Bühler Technologies GmbH (Germany)—a global leader in sample gas conditioning systems. This pump is designed to reliably convey sample gas from sampling probes through conditioning lines to gas analyzers in continuous emission monitoring systems (CEMS).

The key distinction of the P2.4 model is its integrated bypass valve located directly on the pump head. This feature allows operators to easily adjust internal pressure and flow regulation, providing optimal flow control for sensitive gas analyzers without requiring external relief valve assemblies.

Constructed from chemically inert materials such as PTFE, PVDF, or 1.4571 (316Ti) Stainless Steel combined with a PTFE-coated diaphragm, the Bühler P2.4 provides complete resistance against aggressive sample gas components including SO2, SO3, NOx, HCl, HF, H2S, CO, CO2, and organic solvent vapors. Delivering smooth flow performance and ultra-low vibration, the P2.4 is built for continuous 24/7 industrial operation in demanding process environments.

• Manufacturer: Bühler Technologies GmbH
• Product Series / Model: P2.4 (Sample Gas Diaphragm Pump with Bypass Valve)
• Country of Origin: Germany
• Operating Principle: Electromechanical Diaphragm Pump with integrated adjustable bypass
• Free Flow Rate: Max approx. 400 Nl/h (approx. 6.6 L/min)
• Special Feature: Integrated bypass valve for direct pump head flow/pressure regulation
• 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. 55W to 70W
• Inlet / Outlet Port Connections: G 1/4" or NPT 1/4" female threads
• Protection Class: IP 20 / IP 40 / IP 55 (depending on housing version)
• Net Weight: Approx. 2.1 kg - 2.9 kg
• System Compatibility: Chemically inert gas path, built-in flow adjustment, fully integrable into CEMS conditioning panels, sample gas coolers, and analyzer cabinets.