本文通过对高层住宅直饮水系统各种竖向压力分区方式的比较得出:减压阀分区更适用于直饮水系统。减压阀的选择和直饮水系统的安全可靠性与循环回流均衡性息息相关,可调式减压阀更有助于系统回流压力的平衡。 In this paper, through the comparison of various vertical pressure zones of direct drinking water system in high-rise residences, it is concluded that the pressure relief valve zone is more suitable for direct drinking water system. The choice of pressure reducing valve and the safety and reliability of the direct drinking water system are closely related to the balance of the circulating reflux. The adjustable pressure reducing valve is more conducive to the balance of the reflux pressure of the system.