Solenoid Valve 12v 1/4 inch (Blue)

Solenoid Valve" (Blue)

Overview

The 12V 1/4 inch Solenoid Valve is an electrically controlled valve used to control the flow of liquids (mainly water) using a 12V DC supply.

Commonly used in:

• Water control systems

• Automatic irrigation

• Arduino automation projects

• Smart home plumbing

Working Principle

The valve operates using an electromagnetic coil:

• When 12V is applied coil creates magnetic field

• Magnetic field pulls a plunger valve opens

• When power OFF spring returns valve closes

Based on Electromagnetism

Infographic Summ 12V SOLENOID VALVE Controls: Water flow Voltage: 12V DC Type: Normally Closed Size: 1/4 inch inlet Medium: Water Operation: Electric

Connection Details

Solenoid Valve Wire 1 +12V Wire 2 GND

Polarity usually does not matter (non-polarized coil)

Key Specifications

• Operating Voltage: 12V DC

• Current: ~300500 mA

• Pipe Size: 1/4 inch

• Type: Normally Closed (NC)

• Operating Temperature: 0C 80C

• Medium: Clean water

Key Features

• Automatic water flow control

• Fast ON/OFF switching

• Easy installation

• Compact and lightweight

• Compatible with battery systems

Applications

• Automatic irrigation systems

• Water dispensing machines

• Smart home water control

• Liquid control in projects

• Robotics fluid systems

Interfacing

Works with:

• Arduino

• ESP32 / ESP8266

Working Example

Automatic Plant Watering System:

• Soil dry detected

• Microcontroller sends signal

• Relay activates valve

• Water flows

• Soil becomes wet valve OFF

Important Notes

• Requires driver circuit (relay/MOSFET)

• Generates heat during long operation

• Not suitable for high-pressure systems

• Use clean water to avoid clogging

Solenoid Valve vs Motor Valve

Always add a flyback diode across the valve

Use relay module for safe control

Install filter to prevent clogging

Perfect for automation and IoT water control projects