Safe valve for high pressure regulator

A valve for a pressure regulator, the valve comprising:

• a guide body coupled to a valve port prepared at a body of the pressure regulator;
• a valve body coupled to an upper end part of the guide body to open the valve port when overpressure occurs in a state that the valve port is closed;
• a lower spring installed inside the guide body for providing elastic force to the valve body;
• a discharging pipe coupled to a lower part of the guide body for discharging fuel upon an opening operation of the valve body;
• and a separation preventing pin for preventing the discharging pipe from being completely separated from the guide body, wherein the valve is configured to relieve the overpressure by discharging the fuel when the overpressure occurs inside the pressure regulator, is configured to be separated from the body of the regulator to discharge the fuel inside the pressure regulator, and wherein the separation preventing pin is installed and penetrates through one side of the guide body, an inner end of the separation preventing pin protrudes into a moving space disposed between an annular rib disposed at an upper end part of the discharging pipe and a central part of the discharging pipe, and a movable distance of the discharging pipe from the guide body is limited within a height of the moving space.