| 摘要 |
PURPOSE:To prevent gas ejection accidents by enclosing a ball in an expanded portion of a high-pressure hose, thereby to stop a flow of gas at time of breakage of the hose. CONSTITUTION:An expanded portion 4 has a ball 3 for stopping a flow of gas, which is positioned below a hole for permitting gas to flow. The specific gravity of the gas stop ball is 2-8g, which is adapted to stop ejecting of gas in 2-6sec when the high-pressure hose is broken or torn, so as to prevent gas ejection accidents. |
