Profile: ATO Solenoid Valve Inc. specializes in providing solenoid valves. Solenoid valve is a basic automation element to switch the fluid on-off under the effect of electromagnetic force. The solenoid valve is mainly composed of a solenoid (electromagnetic coil) and a magnetic core, as well as a valve body with one or several holes. Pneumatic solenoid valve is used to control the air on-off and change the direction of compressed air flow in the pneumatic circuit. Pneumatic solenoid valves realize the air reversing with the electromagnetic force generated by the solenoid to push the valve core to switch. These solenoids are widely used for controlling the fluid in the applications such as medical equipment, fire fighting facilities, landscape sprinkler irrigation, cleaning equipment, water treatment plant, chemical plant, metallurgical plant, and mining machines.