Normally Closed Solenoid Valve DC12V 24V AC220V Water Control 1/2" 3/4"
Normally Closed Solenoid Valve DC12V 24V AC220V Water Control 1/2" 3/4"
Normally Closed Plastic Solenoid Valve – Reliable Water Flow Control
Take precise control of your water systems with this high-quality Normally Closed (NC) Solenoid Valve. Engineered from durable PA (polyamide) plastic with a rubber seal, this valve opens only when energized — making it ideal for automated irrigation, home plumbing projects, aquariums, water dispensers, and industrial fluid management. Compatible with DC 12V, DC 24V, and AC 220V power supplies, it fits a wide range of setups and DIY automation applications.
Key Specifications
- Body Material: PA (Polyamide) Plastic
- Sealing Material: Rubber
- Nominal Diameter: 8mm
- Working Temperature: Up to 90°C
- Nominal Pressure: 0 – 0.8 MPA
- Working Medium: Tap water, pure water
- Voltage Options: DC 12V / DC 24V / AC 220V
- Available Thread Sizes: 1/2" & 3/4" Male Thread
- Dimensions: 9 × 6 × 6 cm
- Weight: 110g
- Quantity: 1 Piece
Thread Size Reference Guide
| Thread Size | Male Thread (OD) | Female Thread (ID) |
|---|---|---|
| 1/8" | 9.5mm (±0.2mm) | 8.8mm |
| 1/4" | 12.5mm (±0.3mm) | 11.5mm |
| 3/8" | 16.2mm (±0.3mm) | 15.3mm |
| 1/2" | 20.3mm (±0.3mm) | 19.5mm |
| 3/4" | 25.7mm (±0.5mm) | 24mm |
Features & Benefits
- Normally Closed Operation: Valve stays closed when de-energized — no power, no flow. Energize to open. Ideal for safety-critical and energy-saving applications.
- Durable PA Plastic Body: Lightweight yet strong, with excellent resistance to corrosion, high/low temperatures, and everyday wear.
- High-Grade Coil: Premium waterproof, moisture-proof, wear-resistant, and corrosion-resistant coil enclosure for long-lasting performance.
- Wide Voltage Compatibility: Supports DC 12V, DC 24V, and AC 220V — integrates easily into most automation and control systems.
- Excellent Heat Dissipation: Designed for continuous use with efficient thermal management under normal operating conditions.
- Versatile Thread Options: Available in 1/2" and 3/4" male thread sizes for flexible installation.
- Rubber Seal: Provides a reliable, leak-free seal for clean water applications.
Ideal Applications
- Garden & drip irrigation systems
- Home water dispensers & purifiers
- Aquariums & fish tanks
- Automated plumbing & fluid control
- DIY electronics and Arduino/Raspberry Pi projects
- Industrial fluid management systems
What's in the Box
- 1× Normally Closed Solenoid Valve
Made in China.
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Frequently Asked Questions
Q: What does "normally closed" mean for this solenoid valve?
A: A normally closed (NC) solenoid valve is closed by default when there is no electrical power applied. When the coil is energized with the correct voltage (DC 12V, 24V, or AC 220V), the valve opens and allows water to flow. When power is cut, the valve automatically closes again. This design is ideal for energy-saving and fail-safe water control applications.
Q: What pipe thread sizes are compatible with this solenoid valve?
A: This solenoid valve is available in 1/2" and 3/4" male thread sizes. Please refer to the thread size reference guide above to confirm the correct outer diameter for your plumbing setup before ordering. Slight measurement tolerances (0.2–0.5mm) are normal for standard threaded fittings.
Q: Is this solenoid valve suitable for hot water use?
A: Yes, this valve supports working temperatures up to 90°C, making it suitable for hot water applications as well as cold tap water and pure water. It is not rated for steam or highly pressurized systems beyond 0.8 MPA.
Q: Can I use this valve with an Arduino or Raspberry Pi automation project?
A: Absolutely. The DC 12V and DC 24V options are commonly used with relay modules driven by microcontrollers like Arduino or Raspberry Pi, making this solenoid valve a popular choice for DIY automated irrigation, smart home water control, and electronics project builds.
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.