DC 3.7V Micro 3-Way Mini Solenoid Air Valve – DIY Set of 1 or 5
DC 3.7V Micro 3-Way Mini Solenoid Air Valve – DIY Set of 1 or 5
DC 3.7V Micro 3-Way Mini Solenoid Air Valve – DIY Hobbyist Engineering Set
Take precise control of air and gas flow in your next DIY project with this compact DC 3.7V Micro 3-Way Mini Solenoid Valve. Designed for hobbyists, makers, and engineers, this metal-bodied electric solenoid valve switches airflow paths with a simple on/off signal — making it perfect for pneumatic experiments, miniature pumps, robotics, and custom electronic builds. Available in a single unit or a convenient 5-pack so you always have spares on hand.
Made in Mainland China.
Key Specifications
- Rated Voltage: DC 3.7V
- Current: 0.28A
- Power: 1W
- Lead Wire Length: 10cm
- Material: Metal construction
- Configuration: 3-Way (ports labeled 1, 2, 3)
How It Works
- Power OFF: Port 1 connects to Port 3 — Port 2 is blocked.
- Power ON: Port 1 connects to Port 2 — Port 3 is blocked.
This simple switching logic makes it easy to route airflow or gas between two paths depending on the state of your circuit — ideal for automated systems, custom pneumatic rigs, and experimental setups.
Why Makers Love This Valve
- ✅ Ultra-low voltage (3.7V DC) — compatible with single Li-Po batteries and common microcontroller setups
- ✅ Compact, lightweight metal body fits tight spaces in miniature builds
- ✅ Instant switching for responsive air/gas flow control
- ✅ Available as a single unit or 5-pack for project redundancy and prototyping
- ✅ Low power draw (1W) — great for battery-powered projects
What's in the Package
- 1× or 5× Mini Solenoid Valve (DC 3.7V, 3-Way)
Perfect For
- DIY pneumatic systems and miniature pump control
- Robotics and automated mechanical projects
- Electronics experimentation and prototyping
- Hobbyist engineering and maker workshops
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Frequently Asked Questions
Q: What voltage does the mini solenoid valve require to operate?
A: This micro solenoid valve is rated at DC 3.7V with a current draw of 0.28A and 1W power consumption — making it directly compatible with standard single-cell Li-Po batteries and many popular microcontroller platforms used in DIY and hobbyist engineering projects.
Q: What is the difference between the "power on" and "power off" states of the 3-way valve?
A: In the power-off state, Port 1 is connected to Port 3 while Port 2 is blocked. When powered on, Port 1 connects to Port 2 and Port 3 becomes blocked. This two-state flow switching is perfect for directing air or gas between two separate paths in automated or experimental builds.
Q: Can I use this solenoid valve with gases other than air?
A: This valve is designed for air and compatible gas flow control in low-pressure DIY and experimental applications. It is not rated for high-pressure industrial use. Always verify compatibility with your specific gas media and operating pressure before integrating into your project.
Q: Is the 5-pack a better value for ongoing projects?
A: Yes! The 5-pack option is ideal for prototyping, classroom workshops, or builds that require multiple solenoid valves. Having extra units on hand ensures uninterrupted experimentation and allows you to test multiple circuit configurations simultaneously.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.