Constant Flow Regulator

This constant flow regulator from PortaGas are designed to maintain constant flow rates so you get real accurate monitor calibrations even as the cylinder pressure drops.


  • Knurled ON/OFF knob for easy grip with or without gloves
  • Rotate knob for audible ON/OFF click
  • No set screw on knob, meaning knob won’t strip out
  • Wide diaphragm design for precise flow control even as the cylinder pressure changes
  • Finer graduations for precise reading of cylinder contents
  • Stainless steel gauge
  • All wetted surfaces have proprietary passivated coating to ensure non-reaction with calibration gas
  • Wide choice of outlets and inlets available
  • Side outlet prevents tubing from kinking
  • Available flows for the constant flow regulator include: 0.25 LPM, 0.5 LPM or 1.0 LPM, others available

Ordering Information

For pricing, please call AFC International at 1-800-952-3293, 219-987-6825 or fax 219-987-6826 or email

Catalog No.
Regulator, .25 LPM, C-10 90005509
Regulator, .5 LPM, C-10 90005510
Regulator, 1.0 LPM, C-10 90005520
Regulator, .25 LPM, CGA600 90009055
Regulator, .5 LPM, CGA600 90009206
Regulator, 1.0 LPM, CGA600 90009207

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