ELECTRICALLY OPERATED CONTROL VALVE

摘要

An electrically operated control valve, in which a valve body side spring retainer member is in contact with a stopper surface section, provided on a valve holder, to limit the movement of the valve body side spring retainer member to the lower lip section side; the valve body side spring retainer member is in contact with the stopper surface section to be separated from a valve body until a male screw shaft moves, by a distance equal to or more than a predetermined value, from a position where the valve body is seated on a valve seat section further to the valve seat section side; and, as a result, the valve body side spring retainer member and the valve body are separated, causing spring force of a compression coil not to act on the valve body. By this, wear at the surface where the valve body and the valve seat section are in contact is reduced, and leakage in a totally closed state is less likely to occur for a long period.