GB 50243-2016 第9.2.7条
| **** | **Expansion joint installation**: Expansion joints (e.g., bellows expansion joints, square expansion joints) shall be provided for HVAC water system piping (such as supply and return water pipes laid in long hotel corridors). The installation location and pre-stretching amount of the expansion joints must comply with the design requirements to ensure the safe thermal expansion and contraction of the piping. |