Electric Proportional Valves

Electric proportional valves also called Electric modulating valves, Electric regulating valve or adjusting valve, valves in this group not only ON/OFF, it can open as any angle by inputing 3 signals:

0V to 5V, 0V to 10V and 4 to 20mA, the valve can open from 0 degree(fully close) to 90 degree(fully open).