必须安装一个适当的排泄管道，连接阀门的出水口，并且流向安全的地方。
A proper drain line connected to the valve outlet and run to a safe place of disposal must be installed.
这种阀门需要由得到许可的承包商进行定期检查和确认出水口温度。
This valve requires periodic inspection and verification of the outlet temperature by a licensed contractor.
这种阀门需要由得到许可的承包商进行定期检查和确认出水口温度。
This valve requires periodic inspection and verification of the outlet temperature by a licensed contractor.
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