Alicat Scientific, which is based in Marana, Arizona, has engineered a new mass flow controller with its highest top flow rate suitable to a wider range of applications. The MCRH can accommodate flow rates of up to 5000 slpm (standard litre per minute), without compromising speed or precision of gas control. The highly stable controller manages industrial processes with more chaotic upstream fluctuations, such as control of industrial combustion gases, or mass flow into food and packaging processes.
The MCRH 5000 slpm precisely and rapidly controls mass flow rate, volumetric flow rate, or back pressure of gases in high flow processes. To overcome the poor turndown ratio and slow response of existing methods (such as interlinking a meter with an external valve) Alicat designed a new flow geometry. This new design accommodates the higher flow rates, with a low pressure drop of 14.1 psig (pounds per square inch gauge) at full scale. A dual valve design enables a fast 100 millisecond control response time without significantly raising instrument power requirements.