12V/24V Inlet Solenoid Valve for Reverse Osmosis & Water Purifiers

Upgrade or repair your reverse osmosis system, pure water machine, or tea maker with this reliable DC 12V/24V inlet solenoid valve. Engineered for precise, fast water flow control with a 2-point (1/4") quick-connect fitting, this valve installs in seconds — no threading or tools required. Rated for over 500,000 operation cycles, it's built for long-term, worry-free performance.

Available Styles

Style A – DC 12V (Normally Closed): Closes when unpowered, opens when powered. Ideal for tea table water dispensers connected to a water purifier, or 12V pure water machines.
Style B – DC 24V (Normally Open): Opens when unpowered, closes when powered. Perfect for standard RO systems and water purifiers running on 24V DC power.

Key Features

✅ 2-Point Quick Connect: Compatible with 1/4" (≈6.4mm OD) tubing — push-fit installation, no clamps needed
✅ Fast Response: On ≤ 0.15s / Off ≤ 0.3s for precise water flow switching
✅ Wide Pressure Range: Works from 0 to 0.8 MPa (Style A) and withstands over 2.5 MPa (Style B)
✅ Temperature Range: Operates in media temperatures from 1°C to 75°C
✅ Long Service Life: Rated for 500,000+ actuations
✅ High Insulation Safety: Withstands AC 2500V for 1 min; insulation resistance >100 MΩ
✅ Gate Structure: Low flow resistance for efficient water delivery

Technical Specifications

Parameter	Style A (12V)	Style B (24V)
Rated Voltage	DC 12V	DC 24V
Input Power	—	5W
Coil Resistance	37Ω ± 0.25Ω (at 20°C)	—
Working Pressure	0 – 0.8 MPa	>2.5 MPa (362 PSI)
Media Temperature	1°C – 75°C	—
Connector Type	2-Point Quick Connect (~6.4mm OD)	2-Point Quick Connect (~6.4mm OD)
Switch Type	DC Continuous	DC Continuous
Response Time (On/Off)	≤0.15s / ≤0.3s	—
Service Life	≥500,000 cycles	≥500,000 cycles

Flow Characteristics (Style A – 12V)

At 0.02 MPa: ≥ 3 L/min
At 0.1 MPa: ≥ 12 L/min
At 0.8 MPa: ≥ 35 L/min

Common Applications

Reverse osmosis (RO) water purification systems
12V or 24V pure water machines
Tea table water dispensers connected to water purifiers
Water treatment equipment upgrades and repairs
DIY water filtration and automation projects

Made in Mainland China.

For more information on safe drinking water standards and filtration systems, visit the U.S. EPA Drinking Water Resources.

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Frequently Asked Questions

Q: What is the difference between Style A (12V) and Style B (24V) solenoid valves?

A: Style A is a DC 12V normally-closed valve — it stays shut when unpowered and opens when power is applied. Style B is a DC 24V normally-open valve — it stays open when unpowered and closes when energized. Choose based on your system's voltage and the fail-safe behavior you need.

Q: What tubing size fits the 2-point quick connect inlet/outlet?

A: Both the inlet and outlet use a 2-point (1/4") quick-connect fitting compatible with tubing that has an outer diameter of approximately 6.4mm. Simply push the tubing straight in — no clamps, adhesive, or threading required.

Q: Can this solenoid valve be used with a standard household reverse osmosis (RO) system?

A: Yes. This valve is specifically designed for use with reverse osmosis water purifiers and pure water machines. Ensure you select the correct voltage (12V or 24V) to match your existing system's power supply before purchasing.

Q: How long will this solenoid valve last?

A: This valve is rated for a service life of 500,000 or more operation cycles, making it a durable long-term component for continuous use in water filtration systems.