Atos India offers Digital Servo Proportional Valve. Atos India, an ISO 9001 awarded company supplies components and systems in electro hydraulic advanced technology to improve the performance of the modern machinery. Digital Servo Proportional Valve modulates hydraulic or motion parameters according to electronic reference signals. The basic principle of Digital Servo Proportional Valve is the force of solenoid which is related to the reference signal, thus properly moving the spool against a return spring to modulate hydraulic parameters.