The newly released Stepper 12 is described as a self-contained media separated electronic proportional flow control valve designed for highly accurate, electronically controlled, variable flow control of inert fluids and gases.
Most proportional valves require constant power to maintain their position. However, the STEP 12 Saves energy by maintaining its position with minimal power and needs only 60mA after/when position is found and maintains a steady state.
Applications for the STEP12 are limited only by your imagination!