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This 12V DC solenoid valve controls water flow through a 3/4″ threaded inlet and outlet. It is normally closed — fluid is blocked until 12V is applied to the...

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This 12V DC solenoid valve controls water flow through a 3/4″ threaded inlet and outlet. It is normally closed — fluid is blocked until 12V is applied to the fast-on spade connectors on the solenoid coil. Connect it to a pressurised water source such as a garden hose or mains supply for automated irrigation, filling, or fluid control projects.

This valve requires water pressure to open fully — it is not suitable for gravity-fed systems. It operates at a minimum of approximately 3 PSI and allows around 3 L/min of flow at that pressure.

Key Features

  • Normally Closed Operation – Blocks flow when unpowered, opens at 12V DC
  • 3/4″ Threaded Connections – Standard threaded inlet and outlet for common hose and plumbing fittings
  • Fast-On Spade Connectors – Easy wiring to the solenoid coil
  • Pressure-Operated – Requires minimum ~3 PSI water pressure to open

Ideal For

  • Automated garden and greenhouse irrigation
  • Aquaponics and hydroponics water management
  • Home automation fluid control systems
  • Microcontroller-driven water dispensing projects

Package Contents

  • 1× 12V Solenoid Valve (3/4″)
Important: This is not a gravity-feed valve. A pressurised water source (garden hose, mains supply, or pressure pump) is required — low-pressure pumps may not provide sufficient flow. A relay or MOSFET is needed to switch the valve from a microcontroller.
Tip: Looking for a different size? See the 12V Solenoid Valve (1/2″) or browse our other solenoid valve options.

Jargon buster

Plain-language definitions for the technical terms used above.

DC
DC means direct current, where electricity flows in one constant direction, as supplied by batteries, USB ports and many plug-pack power supplies. When a product specifies DC, it runs from a DC supply rather than mains AC, so you need to provide the correct voltage and polarity.
Gravity
Gravity is DFRobot’s plug-in connector system for sensors, motors and modules, using standard cables to reduce loose jumper wiring. It matters because Gravity-compatible parts can connect directly to these ports, while non-Gravity parts may need adapters or manual wiring.
microcontroller
A microcontroller is a small computer on a single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.

AQT15SP Solenoid Valve Datasheet

Datasheet · 131.8 KB · Click any page to view full size

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Supplier page — sparkfun.com

Supplier Description · 504.3 KB · Click any page to view full size

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Related Tutorials

Free guides on learn.littlebird.com.au

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