Bühler Technologies Gas Analysis and Fluid Control Industrial Systems

Sample Gas Probes Series GAS 222

Bühler Technologies GAS 222 series sample gas probes are engineered for continuous extraction of process, flue, and emission gases in demanding industrial environments.

The probes provide high-efficiency primary particulate filtration directly at the sampling point, eliminating cold spots and preventing premature moisture condensation along the gas path.

The product range includes unheated models GAS 222.10 and GAS 222.11, self-regulating heated units GAS 222.15, and electronically controlled models GAS 222.20 and GAS 222.21 equipped with automated blowback pulse-cleaning mechanisms for heavy dust loads.

Specialized ATEX and IECEx certified explosion-proof configurations (Ex1, Ex2) are available for hazardous zones 0, 1, and 2, alongside heavy-duty vibration-resistant marine variants GAS 222.15-MA. Tool-free filter element replacement minimizes maintenance downtime.

Specify process temperature, dust loading, probe tube insertion length, heating method, blowback requirement, and explosion-proof zone rating.

Sample Gas Coolers Series TC, RC and EGK

Bühler Technologies sample gas coolers deliver precise temperature reduction below the gas dew point to condense moisture and protect sensitive gas analyzer measurement cells from corrosion and damage.

The lineup features semiconductor Peltier coolers (TC-Standard+, TC-MIDI+, TC-Double+, TC-Mini), advanced compressor chillers (RC 1.1, RC 1.2+, RC 2.4 Rack, RC 3.1) utilizing eco-friendly natural refrigerant R600a, and proven EGK series units (EGK 1/2, EGK 2-19, EGK 4S).

Systems incorporate plug-in heat exchangers fabricated from Duran borosilicate glass, PVDF, or high-grade 1.4571 stainless steel. Optimized heat exchanger geometries minimize SO2 wash-out effects to satisfy EN 15267-3 automatic measuring systems (AMS) regulations and support hydrogen/oxygen cooling.

Specify number of gas paths, cooling technology (Peltier/compressor), heat exchanger material, EN 15267-3 compliance, and mounting configuration.

Sample Gas Bellows Pumps Series P1, P2 and P4

Bühler Technologies sample gas pumps are engineered for non-stop conveyance of analytical gas streams containing corrosive, toxic, and aggressive chemical compounds.

The core pumping mechanism uses a single-piece solid PTFE bellows that guarantees absolute gas tightness and zero sample contamination from lubricants.

The portfolio features compact P1 pumps, versatile P2 bellows pumps (P2.2, P2.3, P2.4, P2.72, P2.82) delivering nominal flow rates between 280 and 1000 L/h, and heavy-duty heated P4 series units (P4.2, P4.3) handling sample gases up to +160 °C.

Options include explosion-proof motors, 115/230 V AC or 24 V DC power supplies, integrated needle bypass valves for precise flow adjustment, and anti-vibration shock mounts.

Specify nominal gas flow rate, sample temperature, gas composition, head heating requirements, and motor voltage.

Sample Gas Fine Filters Series AGF and BF 222

Bühler Technologies sample gas fine filters safeguard delicate optical benches, analysis cells, and electrochemical sensors against particulate contamination, aerosols, and fine droplets.

The AGF series encompasses AGF-VA models housed in 1.4571 stainless steel, AGF-PV units in inert PVDF housings, and high-temperature AGF-T-30 filters featuring transparent Duran glass bowls for direct visual status monitoring. The BF 222 range is optimized for space-restricted analytical cabinets.

The filters utilize replaceable cartridges manufactured from porous PTFE, micro-fiberglass, sintered ceramics, and stainless steel mesh offering retention ratings from 0.1 to 25 µm, alongside coalescing elements for aerosol removal.

Specify housing material (PVDF/stainless steel), design pressure, operating temperature, micron retention rating, and filter element media.

Condensate Removal Systems, Peristaltic Pumps CP and Moisture Sensors ER

Bühler Technologies condensate removal solutions ensure continuous, hermetic discharge of condensed liquid from sample gas coolers without disrupting system pressure or admitting ambient air into the analytical stream.

The core portfolio features CPsingle and CPdouble peristaltic pumps with single or dual pump heads, driven by heavy-duty synchronous motors and fitted with chemically inert Novoprene or Norprene tubing delivering 0.3 to 1.0 L/h flow rates.

For automatic gravity drainage, the range offers mechanical float traps including 11 LD, 11 LD V 38, AK 5, and AK 20.

Electronic moisture detectors ER-141, ER-142, and FF-HM provide fast-acting fail-safe alarm interlocks, while chemically resistant CV collection vessels (3 L, 6.5 L, 10 L) safely retain corrosive condensate.

Specify peristaltic pump drive type, tube chemical compatibility, system pressure rating, ER moisture detector integration, and CV vessel capacity.

Combined Level and Temperature Sensors Series Nivotemp

Bühler Technologies Nivotemp series multifunction monitoring instruments integrate continuous fluid level tracking and precise oil temperature measurement within a single compact tank connection.

Installed on hydraulic reservoirs, lube oil skids, and centralized fluid power systems, the Nivotemp family (NT 61, NT 63, NT 64, NT 67, NT-M) provides 4–20 mA analog outputs, configurable PNP switching contacts, standard digital IO-Link communication, and an illuminated LED display rotatable by up to 270°.

Immersion stem tubes are available in high-strength brass or 1.4571 stainless steel across lengths from 280 mm to 1500 mm. The fluid control line also offers magnetic bypass indicators NivoFlip and reed switch level sensors NS 10/25.

Specify tank depth/stem length, output interfaces (4–20 mA, PNP, IO-Link), stem material (brass/stainless steel), temperature limits, and flange type.

Oil / Air Coolers Series BLK, BNK and Plate Heat Exchangers BWT

Bühler Technologies industrial cooling solutions stabilize operating fluid temperatures and preserve lubricant viscosity across hydraulic presses, gearboxes, injection molding machines, and heavy mechanical drives.

The BLK series of air-to-oil heat exchangers utilizes aerodynamically optimized low-noise axial fans to dissipate thermal loads up to 300 kW. Integrated BNK cooling skids combine an aluminum cooling matrix with a built-in gerotor circulation pump into a compact standalone offline package.

ATEX-certified ELK and ENK units ensure safe operation in explosive atmospheres. For water-cooled installations, the BWT line offers brazed stainless steel plate heat exchangers and BKT shell-and-tube coolers built for dynamic pressures up to 26 bar.

Specify cooling capacity (kW), oil flow rate, fluid viscosity, cooling medium (air/water), motor voltage rating, and integrated bypass valve options.

Pressure Switches DS, Filter Indicators BFA and Flow Meters SM-6

Bühler Technologies fluid control and gas flow monitoring instruments provide comprehensive operational surveillance for process systems.

DS 6 electronic pressure switches and EDS sensors accurately monitor hydraulic system pressures from 0–2.5 bar up to 0–600 bar with exceptional long-term stability.

BFA and BFM differential pressure indicators deliver mechanical optical pop-up flags or electrical 4–20 mA signals to alert operators of hydraulic filter clogging before bypass valves open. BCM capacitive oil condition sensors continuously track moisture saturation percentage and fluid degradation.

In gas analysis lines, SM-6 and SM-6-V variable area flow meters with integrated needle valves and optical low-flow limit switches maintain exact sample flow rates.

Specify pressure/flow range, output signal type (PNP, 4–20 mA, visual flag), process medium (oil/gas), and connection thread standard.