There is no maximum flow in the ProboStat. It depends on how much pressure is applied on the ProboStat inlet and how much overpressure is developed inside to press the gas out. A user may calculate this by assuming that each inlet and outlet of the ProboStat has ca 10 cm of length of gas tubing of 1/8 inch outer diameter.

Typical ProboStat flow rate would be flow rates around 100 mln/min.

It is possible to feed significantly higher flows into the ProboStat than the mentioned amounts. With very much higher flow the only consideration is to be certain to avoid any pressure buildup in the system. There is no solid limit, it depends on the gas equipment connected after ProboStat. For example if there is long and narrow gas line after the ProboStat, it will have high resistance and it will increase the pressure can build up inside ProboStat. Maximum pressure inside the sample holder is 1.1 bars atmospheric or 0.1 bar gauge. For higher pressures use high pressure tube.