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Product Overview
The 12V 1/2″ Water Solenoid Valve from Pro Tronix is an electromechanically operated valve used to control the flow of liquids. As a Normally Closed (NC) valve, it remains shut when power is disconnected, preventing any water from passing through. When 12V DC is applied, the internal solenoid creates a magnetic field that lifts the plunger, allowing water to flow.
Designed with a durable plastic body and standard 1/2″ pipe threading, it integrates easily with common plumbing fixtures. This valve is “Pressureless” (Direct Action/Low Pressure), meaning it can operate effectively even in gravity-fed systems or low-pressure environments where pilot-operated valves might fail.
Technical Specifications
| Feature | Specification |
| Operating Voltage | 12V DC |
| Operation Mode | Normally Closed (NC) |
| Interface Thread | 1/2″ (Approx. 20mm) |
| Fluid Compatibility | Water and Low-Viscosity Liquids |
| Body Material | Durable Plastic / Nylon |
| Medium Temperature | 1°C – 75°C |
| Connector Type | Spade Terminals (Flat Pins) |
| Supplier | Pro Tronix |
Key Features
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Instant Response: Triggers immediately upon receiving a 12V signal, making it ideal for precision dosing or emergency shut-offs.
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Low Power Requirement: Can be easily controlled via a relay or a power transistor from an Arduino, ESP32, or Raspberry Pi.
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Pressureless Design: Capable of opening even with very low water pressure, making it suitable for gravity-fed tanks.
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Corrosion Resistant: The plastic body is designed to handle water contact without the rusting issues associated with cheap metal valves.
Common Applications
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Smart Irrigation: Connect to a moisture sensor and an Arduino to water your plants automatically.
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Automatic Dispensers: Used in DIY touchless hand sanitizers or liquid filling machines.
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Water Level Control: Paired with a float switch to automatically refill tanks or aquariums.
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Home Automation: Building a smart shower or a remote-controlled garden hose system.
