如果闻到煤气味儿，或看到管道破裂，要关掉从外面进屋煤气管道的主阀门。

If you smell gas or see a broken line, shut off the main valve from the outside.

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如果可能的话，从外面的主阀门关掉煤气。从邻居家给天然气公司打电话让他们处理。

Turn off the gas, using the outside main valve if you can, and call the gas company from a neighbor \ 's home.

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订购手轮或链轮执行器时，要在主阀门订购代码基础上增加适当的执行器订购代码。

To order handwheel or chainwheel actuators, add the appropriate order code to the basic valve order code.

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