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News :: 10/12/2017

MFCs with integrated shut-off valve

Mass Flow Controller with shut-off valve

Axetris, Mass Flow Devices

Axetris MFCs are now available on request with an integrated pneumatic shut-off valve.

For vacuum applications, e.g. in various thin film coating processes, an additional positive shut-off is required in order to maintain vacuum process stability and avoid target poisoning.


Axetris mass flow controllers are now available on request with an integrated pneumatic shut-off valve, typically providing leak tightness to 10-10 mbar l/sec He. The integrated solutions can be made available with all standard connections such as VCO/VCR.


The integrated solution simplifies design-in into existing systems for OEMs worldwide, who continue to benefit from superior mass flow control performance of Axetris MFCs, such as:


  • Excellent Reproducibility: Repeatability better than +/- 0.15% O.R. combined with long-term stability to eliminate the need to re-calibrate, and ensure constant thin film properties over time
  • Quick Reaction Time: Less than 150ms to a stable state for real-time control of gas flows and tight control of deposition processes
  • Unmatched Dynamic Range: Turndown ratio of better than 1000:1 to achieve instrument flexibility and reduce MFC variants


Contact the flow experts at Axetris to discuss your application needs.

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