Water - System Valves

Point features displaying the different types of water system valves apart of the City's water system network. Water system valves are classified as butterfly valve, gate valve, hydrant gate valve, zone valve, and fire lane gate valve. These valves block the pipe either partially or completely to change the amount of fluid that passes through it. Updated as an ongoing process.本数据集包含的点要素（Point features）用于展示隶属于城市供水系统管网的各类供水阀门。供水阀门可分为蝶阀（butterfly valve）、闸阀（gate valve）、消火栓闸阀（hydrant gate valve）、区域阀（zone valve）以及消防车道闸阀（fire lane gate valve）五类。此类阀门可通过部分或完全阻断管道的方式，调节通过管道的流体流量。本数据集将持续更新维护。