The ARP-1.2 Sample Gas Diaphragm Pump is engineered by Bühler Technologies GmbH – a premier German manufacturer world-renowned for gas conditioning solutions and industrial gas analysis equipment. The ARP-1.2 is specially developed to reliably extract, transfer, and compress sample gas streams from emission sources to analytical instruments without altering the chemical composition or physical properties of the sample.

Constructed with high-end stress-resistant diaphragms and chemically inert pump head materials such as PTFE, PVDF, and Stainless Steel, the Bühler ARP-1.2 offers exceptional corrosion resistance. It effectively handles highly aggressive gases containing corrosive compounds, moisture, and acid gases like SO2, NOx, HCl, HF, CO2, and VOCs. The gas-tight pump head design completely eliminates toxic gas leakage into ambient air and prevents ambient air ingress that could otherwise compromise the integrity of sensitive gas analyzers.

A key advantage of the Bühler ARP-1.2 is its capability for continuous 24/7 duty with high operational reliability, low vibration, and minimal noise emission. The heavy-duty electric motor with integrated thermal overload protection maintains consistent flow rates and delivery pressures even under challenging ambient temperatures or pressure differentials. Furthermore, its modular construction enables maintenance personnel to quickly inspect or replace diaphragms and check valves without dismantling the complete pump assembly from the system cabinet.

The Bühler Technologies ARP-1.2 Sample Gas Pump is a essential core component in Continuous Emission Monitoring Systems (CEMS), thermal power plants, metallurgical complexes, cement manufacturing, petrochemical refineries, and analytical laboratories. Incorporating this pump guarantees high measurement accuracy, extends the lifespan of expensive downstream gas analyzers, and ensures compliance with strict environmental regulations.

• Manufacturer: Bühler Technologies GmbH
• Product Line / Model: ARP-1.2 (Series ARP)
• Device Type: Sample Gas Diaphragm Pump
• Country of Origin: Germany
• Operating Principle: Mechanically driven diaphragm pump
• Nominal Capacity (Free Flow): Approx. 280 - 400 Nl/h (depending on backpressure)
• Max. Operating Pressure: 1.5 bar - 2.0 bar abs.
• Max. Vacuum: Down to 250 mbar abs.
• Wetted Materials: PTFE (Teflon), PVDF, Viton (FKM), Kalrez (FFKM), 316L Stainless Steel
• Gas Tightness: < 10⁻⁴ mbar × l/s (Hermetically gas-tight)
• Sample Gas Inlet Temperature: +5°C to +80°C (High-temperature versions up to +140°C optional)
• Ambient Operating Temperature: -20°C to +60°C
• Power Supply: 230V AC 50/60Hz or 115V AC 50/60Hz (Model dependent)
• Power Consumption: Approx. 60W - 100W
• Gas Connection Ports: NPT 1/4" or G1/4" female thread (with PTFE/SS tube fittings)
• Enclosure Protection Rating: IP55 / IP65
• Insulation Class: Class F
• Net Weight: Approx. 3.2 kg - 4.5 kg