Solenoid operated valves use an electrical coil to regulate the position of a poppet, plunger or spool to open or near a valve. Normal solenoid Manage voltages are 12VDC, 24 VAC/DC, 120VAC or 240VAC.A rotary pneumatic actuator may make one thing go inside of a round movement. Such as, a rod within a rack and pinion travel system is applied to produ