Control system for a pressure valve or regulator.

Abstract

A control system (10) for controlling a valve or pressure regulator for combustible or explosive gas systems comprises a valve body (51), an intervention member (52) defined within the valve body (51), a threaded element (53) for controlling the intervention member (52), the threaded element (53) having an operating head (54), the threaded element (53) defining a manipulation axis (X1) about which the threaded element can be screwed or unscrewed with respect to a reverse-threaded hole defined in the valve body (51) for controlling the intervention member (52), a motor assembly (11), a rotating spool (12) configured to engage with the operating head (54), and means for transmitting rotation (40) from the motor assembly (11) to the spool (12).The means for transmitting rotation (40) from the motor unit (11) to the slider (12) comprise a driving rotor (16) and a driven rotor (21), both magnet types, the driven rotor (21) is arranged coaxially to the driving rotor (16) and is arranged to surround the driving rotor (16) with clearance.