| 摘要 |
A safety valve for confirmation of leakage of gas is provided to allow a user to check leakage of gas with naked eyes when the gas is leaked from the valve itself due to wear of an opening/closing ball. A safety valve includes a body having a safety checker(100) and a transparent water tub(22) making it possible to confirm leakage of gas by using generation of bubbles caused by gas flowing through a gas guide pipe passage. A transparent water tub(200) is integrally formed with the valve body. The leakage of gas due to badness of the valve is confirmed by using generation of bubbles of the water tub. A gas passage groove(29) is communicated to open a gas passage(26) by opening a liquid leakage preventing packing. |
