可进行更换金属密封圈的注水报警煤气切断阀

Water-injection alarming coal gad shut-off valve capable of replacing metal sealing ring

Abstract

本实用新型涉及一种用在煤气及其他气体装置上进行可靠切断的可进行更换金属密封圈的注水报警煤气切断阀,包括阀体、安装在阀体内的丝杠、安装在丝杠下端的楔块及位于楔块外部的闸板、在燃气切断阀打开状态时对应闸板在壳体位置处开有的检修窗口、在检修窗口上设有可启闭的密封检修窗盖,其特征在于:对应阀体密封处在闸板外侧通过螺钉安装有金属密封圈,金属密封圈与阀体密封处以及金属密封圈与闸板面接触处均设有橡胶密封圈,具有省时省力省钱、安全可靠的优点。
The utility model relates to an infusion alarm gas-cutting valve used for coal gas and other gas device for exercising reliable cutting of replaceable metal-sealing ring. The utility model comprises a valve body, a screw rod arranged inside the valve body, a cuniform block positioned under the screw rod and a flashboard arranged outside of the cuniform block. When gas-cutting valve is turned on, the overhaul window opened on the shell of the corresponding flashboard is provided with an open-close sealing overall window cover. The utility model is characterized in that: on the corresponding valve sealing place outside the flashboard is provided with a metal sealing loop via a bolt. On the metal sealing loop, the valve sealing places as well as the contact place between the metal sealing loop and flashboard are provided with a rubber sealing loop. The utility model has the advantages of saving time, power and money as well as being reliable and secure.

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