| 摘要 |
PURPOSE:To constitute the valve so as to prevent the jetting of gas surely when a gas cylinder is tilted under a condition that it is equipped with a regulator to the valve, in an emergency shut-off valve for a LPG cylinder or the like. CONSTITUTION:The lower part of a pin rod is rotated so as to face downward while the upper part 4 thereof is turned so as to face upward at all times by a method wherein the lower part 3 and the upper part 4 of the pin rod are bent to opposite directions and the lower bent part is made heavier. A ball with pin 1 is so constituted that it loses the center of gravity thereof with respect to a slight inclination of the upper part 4 of the pin by a method wherein the ball 1 with the pin is scooped out to make the upper part of the ball 1 with the pin heavy, and whereby the shut-off of the passageway may be ensured. |
