Remotely controlled shut-off valve for gas comprises electrically driven spindle, on which nut is mounted carrying two arms attached to plate with threaded outer edge which moves down as nut rotates and rotates threaded gas shut-off plate

摘要

The remotely controlled shut-off valve for gas comprises a spindle (7a) attached to an electric motor (3). A nut (5) is mounted on the spindle, to which two vertical arms (8a, 8b) are attached. These carry a plate (9) with a threaded outer edge which moves down as the nut rotates and rotates a threaded gas shut-off plate (27).