mini CORI-FLOW mass flow meters offer a solution here because of the true mass flow measurement, independent of physical properties. The true mass flow of the molecules is measured, regardless of whether the fluid is in gas phase, in liquid phase or indeed somewhere in between. Experiences in the field have proven that this principle of measuring is very accurate and reliable. For control applications Bronkhorst can offer a flow meter in combination with a metal sealed, pressure actuated control valve. Please contact factory for a customised advice.