Mass-Stream Ideal For Wet And Dirty Gas Streams

Based on a simple and robust through-flow design, the Mass-Stream® Series from Bronkhorst UK presents no obstructions to the flow path, has no moving parts and features very low-to-ultra low pressure drop across the instrument. These features make the Mass-Stream ideal for the mass flow measurement of dirty gases, wet gases and even a combination of the two.

Furthermore, the minimal pressure drop prevents harmful liquid drop out from condensing gases, thereby eliminating internal corrosion and increasing instrument life.
Typical flow measuring applications for the Mass-Stream series include biogas from land-fill sites and digesters, WF6, SiCl4 and other particulating or condensing gases, dirty exhaust gases from combustion processes, carrier gases for particle analysers and humidified powder carrier gases for pharmaceutical research. In addition, the straightforward design can be applied to such cost-sensitive applications as consumption metering for accounting or internal billing purposes, medical gas monitoring, burner ratio control, air flow control in paint spray lines, multiple gas mixing and gas generators.

Suitable for a wide range of gases and with standard pipe fittings between 1/8” OD and 20mm, the Mass-Stream D-62XX series can be calibrated between flows of 0.25 and 6000 Ln/min air-equivalent; it has a standard turn-down of 20:1, although this can be higher on application. When configured as a mass flow controller, a direct acting proportional solenoid valve is integrated directly onto the base-block, for regulating flows up to 500 Ln/min. Above this flow rate, a compact external valve is close-coupled to the meter body, taking flow control up to the 6000 Ln/min limit. Options include an integrated flow display on all models, a range of readout systems for analogue instruments, and digital versions providing fieldbus interfaces.