PNCC Water Fixtures

Water fixtures are components connected to the water network, such as valves, hydrants, or tobies. These fixtures allow the Council to manage, monitor, and maintain the water supply system effectively. They play critical roles in controlling flow, monitoring pressure, sampling water, and providing access for firefighting and maintenance. Data is continually updated as new information is received. The vertical datum used for this dataset is NZVD 2016. Dataset Fields (Columns): Compkey: A unique, auto-generated identifier for the asset UnitID: A unique ID used to identify the asset in the system FixRL: Elevation (Reduced Level) of the fixture — i.e., vertical position Fixture: Code representing the type of fixture (see below for full list) Material Codes & Descriptions ARVL: Air Release Valve Lets air escape from water pipes so they keep flowing smoothly BACK: Backflow Valve Stops water from flowing backward and contaminating the network BFVL: Butterfly Valve A type of valve used to start or stop water flow in a pipe BOOST: Water Booster Station Pumps water to make sure there’s enough pressure in the network BORE: Bore A deep hole drilled into the ground to access water BPVL: Bypass Valve Allows water to flow around a section of pipe when needed CBS: Chlorine Booster Station Adds chlorine to water to keep it clean and safe CLVL: Control Valve Regulates water flow or pressure in the pipes DE: Dead End A pipe that doesn’t connect to any other pipes at the far end DLOG: Data Logger Records water network data like flow or pressure over time DSCV: Double Spring Check Valve A special valve that stops water from flowing backward ERTH: Earth The ground or soil in the area of the water network FH: Water Hydrant A tap on the street for firefighters to access water quickly FLOW: Bulk Flow Meter Measures large amounts of water moving through a pipe GTVL: Gate Valve A valve that can fully stop or allow water flow IMH: Inspection Manhole A small underground chamber for checking or maintaining pipes ISVL: Isolating Valve Lets the council shut off water to part of the network for repairs MANI: Manifold A small underground box containing a valve at the edge of a property METER: Meter Measures how much water a property uses ND: Node A point in the network where pipes meet NRVL: Non-Return Valve A valve that stops water from flowing backward PMS: Pressure Management Station Controls water pressure to keep pipes safe PRVL: Pressure Reducing Valve Reduces water pressure to a safer level for the pipes PSVL: Pressure Sustaining Valve Keeps pressure at a set level to maintain consistent flow REDUCE: Reducer A fitting that connects pipes of different sizes RSVR: Reservoir A large tank or storage area that holds water for the network SCVL: Scour Valve Lets the council flush out sediment from pipes to keep them clean SEVL: Service Valve Controls water flow to an individual property SLVL: Sluice Valve A valve that can fully stop or allow water flow, often for maintenance SWPT: Swab Launcher Part of the system used to clean pipes from the inside SWST: Swab Station Where the pipe cleaning equipment is inserted TFS: Tanker Filling Station A place to fill water trucks TOBY: Toby A small underground box containing a valve at the edge of a property VFM: Variable Flow Meter Measures the amount of water flowing through a pipe WPS: Water Pump Station Pumps water to maintain pressure and supply across the network WPU: Water Polishing Unit Treats water to improve quality before it reaches homes WSB: Water Sample Box A point where council staff can take water samples for testing Notes: The "Updated" date you see on this item indicates when the metadata was last revised. It doesn’t necessarily reflect when the data inside the feature layer was last refreshed. The data available for download on Palmy GeoHUB is updated daily, this results in a difference between what’s currently visible online and PNCC’s databases.

给水设施是接入供水管网的组件，涵盖阀门、消防栓及TOBY。此类设施可助力市政委员会高效管理、监测并维护供水系统，在管控水流、监测管网压力、采集水样以及为消防作业与运维提供作业通道等方面发挥关键作用。
数据集将随新信息的接收持续更新。本数据集采用的垂直基准面为NZVD 2016。

## 数据集字段（列）
Compkey：资产的唯一自动生成标识符
UnitID：系统内用于标识资产的唯一编号
FixRL：设施的高程（折减高程，即垂直位置）
Fixture：标识设施类型的代码（完整类型列表详见下文）

## 设施代码与说明
ARVL：排气阀 — 排出水管内空气，保障输水顺畅
BACK：防回流阀 — 防止水流倒灌污染供水管网
BFVL：蝶阀 — 用于开启或截断管道内水流的阀门类型
BOOST：增压泵站 — 提升管网水压以保障供水充足
BORE：钻井取水孔 — 为获取地下水钻凿的深井
BPVL：旁通阀 — 按需实现水流绕流特定管段
CBS：加氯泵站 — 向水中投加氯制剂以保障水质安全洁净
CLVL：控制阀 — 调节管道内水流或水压
DE：盲端管 — 末端无其他管道连接的管段
DLOG：数据记录仪 — 实时记录管网水流、水压等数据
DSCV：双弹簧止回阀 — 防止水流倒灌的专用阀门
ERTH：地表土壤 — 供水管网区域内的地面与土层
FH：消防栓 — 设置于街道的取水栓，供消防员快速取水
FLOW：总流量表 — 计量管道内通过的总水量
GTVL：闸阀 — 可完全截断或导通水流的阀门
IMH：检查井 — 用于管道检查与运维的小型地下箱体
ISVL：隔离阀 — 供市政委员会截断局部管网供水以开展维修作业
MANI：多通阀箱 — 设置于物业边缘的小型地下箱体，内含阀门
METER：水表 — 计量物业用水量
ND：管网节点 — 管网中管道交汇的点位
NRVL：单向止回阀 — 防止水流倒灌
PMS：压力管理站 — 调控管网水压以保障管道安全
PRVL：减压阀 — 将水压降至安全范围以保护管道
PSVL：稳压阀 — 维持水压稳定以保障水流均匀
REDUCE：异径接头 — 用于连接不同管径的管道配件
RSVR：蓄水池 — 用于储存供水的大型储罐或储水区域
SCVL：冲砂阀 — 供市政委员会冲洗管道内沉积物以保障管网洁净
SEVL：服务阀 — 控制流向单个物业的水流
SLVL：闸阀 — 可完全截断或导通水流，多用于运维作业
SWPT：清管器发射装置 — 用于管道内部清洁的系统组件
SWST：清管作业站 — 放置管道清洁设备的点位
TFS：加水站 — 用于为运水车加注水源的点位
TOBY：物业阀箱 — 设置于物业边缘的小型地下箱体，内含阀门
VFM：可变流量计量表 — 计量管道内实时水流流量
WPS：供水泵站 — 提升水压以保障全管网供水与压力稳定
WPU：水质净化单元 — 对供水进行净化处理以提升入户水质
WSB：水样采集箱 — 供市政工作人员采集水样进行检测的点位

## 备注
本数据项显示的"Updated"日期仅代表元数据的最后修订时间，未必对应要素图层内数据的最新刷新时间。Palmy GeoHUB平台可下载的数据每日更新，因此在线展示内容与PNCC的内部数据库可能存在差异。