To order, add the lever actuator code to the basic valve order code.

订购时，请在主要阀门型号代码的上添加杠杆执行器代码。

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

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。

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Water discharge from the relief valve should be vented in accordance with code requirements.

从安全阀出来的排放水应该按照规程的要求进行排放。

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