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+# valve
+
+Custom Node-RED node for individual valve modeling and control.
+
+## Overview
+
+| Property | Value |
+|----------|-------|
+| **Version** | 0.0.1 |
+| **Category** | Process Control |
+| **Inputs** | 1 |
+| **Outputs** | 3 (process / dbase / parent) |
+| **Part of** | [EVOLV](https://gitea.wbd-rd.nl/RnD/EVOLV) |
+
+## Purpose
+
+The `valve` node models a single valve with open/close control and configurable reaction time. It provides:
+
+- **On/off control** with position feedback
+- **Reaction time modeling** (configurable speed parameter)
+- **Asset identification** for maintenance tracking
+- **Position awareness** for pipeline topology
+
+## Configuration
+
+### Control
+
+| Field | Description |
+|-------|-------------|
+| `speed` | Valve reaction time (open/close speed) |
+
+### Asset Identification
+
+| Field | Description |
+|-------|-------------|
+| `uuid` | Unique asset identifier |
+| `supplier` | Valve manufacturer |
+| `category` | Valve category |
+| `assetType` | Asset type classification |
+| `model` | Valve model |
+
+### Logging
+
+| Field | Description | Default |
+|-------|-------------|---------|
+| `enableLog` | Enable node logging | false |
+| `logLevel` | Log verbosity level | - |
+
+## Parent Node
+
+This node is typically a child of **[valveGroupControl](https://gitea.wbd-rd.nl/RnD/valveGroupControl)**, which coordinates multiple valves.
+
+## Inputs and Outputs
+
+### Input (Port 0)
+Open/close commands and position setpoints.
+
+### Output Port 0 - Process Data
+Current valve position, state (open/closed/transitioning).
+
+### Output Port 1 - InfluxDB Telemetry
+Valve state time-series data.
+
+### Output Port 2 - Registration
+Parent registration messages for `valveGroupControl`.
+
+## Dependencies
+
+- [generalFunctions](https://gitea.wbd-rd.nl/RnD/generalFunctions) (MenuManager, configManager)
+
+## Technical Requirements
+
+- Node.js >= 18
+- Node-RED >= 3.x
+
+## Testing
+
+```bash
+node --test test/basic/*.test.js
+node --test test/integration/*.test.js
+node --test test/edge/*.test.js
+```