SERVO-POSITIONER FOR A MICRO-REGULATING VALVE

摘要

The invention relates to a positioning system which is suitable for micrometric regulating valves. The invention comprises a micro-regulating valve (1) which is connected to the shaft (4) of a servomotor (3) by means of a flexible coupler (2) and which is fixed to the same using a support (6). The aforementioned motor (3) is, in turn, coupled to a potentiometer (5) which transmits the position of the shaft (4) of the motor (3) and, consequently, of the rod of the valve (1) to a control system which compares a signal received from an external control system with the position of the value (1), the position of said valve being corrected with a movement of the motor (3). In this way, the invention constitutes a quick and precise positioning system which can operate at high pressures and with very low flow rates.