Flow Controller

Price: From $552.00 to $667.00

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A flow controller maintains constant sample flow over an integrated time period despite changes in environmental temperature or the vacuum inside the canister. The Veriflow® SC423XL Series Flow Controller is a unique device which supplies a constant flow with a self correcting action to compensate for changes in downstream pressure. The flow controller was designed for air and analyzer sampling systems which require very low flow rates (less than 10 scc/m). Connected to a vacuum cylinder, the flow controller provides consistent flow control despite changes in the vacuum.  Highlights of the flow controller follow:
  • Reliable Precision Flow Control as low as 1 sccm.
  • Adjustable Flows.
  • Stable flows as vacuum pressure changes from 28 in Hg to 5 in Hg.
  • Stable flows over a wide temperature band.

The flow controller is available in stainless steel or with inert passivation treatment.  The vacuum gauge, critical orifice, sample inlet, particle filter, and fittings used in passive air canister sampling are available separately or bundled together in our Passive Air Sampling Kit.