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美国“科精美国际公司”设计的室内给水管道,常在阀门附近设置一垂直封闭立管。立管内封存空气。当阀门突然关闭时所产生的压力增加,可以压缩空气柱得以缓冲,
An indoor water supply pipe designed by the United States “Fine Exquisite International Company” often has a vertical closed riser near the valve. Air is sealed in the riser. When the pressure suddenly increases when the valve is suddenly closed, the compressed air column can be buffered.