Valve having Flow Control Device and Overpressure Prevention Device for Portable High Pressure Gas Can

摘要

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a valve for opening and closing a portable high-pressure gas can, and more particularly, to a valve for opening and closing a portable high-pressure gas can, including an overpressure prevention part for preventing opening of a gas can, To a valve of a portable high-pressure gas can having a flow rate control section and an overpressure prevention section to which gas is supplied at a constant flow rate even if the internal pressure of the can is reduced.