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GB 50015-2019 第6.3.5条 Standard for Design of Building Water Supply and Drainage

Hot water给排水

GB 50015-2019 第6.3.5条

| **** | Hot water circulation flow rate: The hotel building's hot water supply system shall be provided with mechanical circulation; the circulation flow rate shall be determined by calculation based on the pipe network head loss and temperature drop (△t=5~10℃); ensure the outlet water temperature at fixtures is not lower than 45℃ (showers) or 50℃ (bathtubs). |

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