Solenoid valve is a crucial component in most of the engineering devices. Let’s explore the impressive engineering behind solenoid valves starting from the simplest one.
Solenoid valves differ in the characteristics of the electric current they use, the strength of the magnetic field they generate, the mechanism they use to regulate the fluid, and the type and characteristics of fluid they control.
Excavators have a torsion control valve, a stick flow solenoid valve, and a solenoid valve group consisting of a secondary overflow, a cancellation solenoid valve, a rotary brake solenoid valve, and a traveling speed solenoid valve.
The structure of the solenoid valve is basically the same.The mechanism varies from linear action, plunger-type actuators to pivoted-armature actuators and rocker actuators. The valve can use a two-port design to regulate a flow or use a three or more port design to switch flows between ports. Multiple solenoid valves can be placed together on a manifold.Solenoid valves are the most frequently used control elements in fluidics. Their tasks are to shut off, release, dose, distribute or mix fluids./wikipedia