DN15 1/2" Adjustable Float Valve – Auto Water Level Control
DN15 1/2" Adjustable Float Valve – Auto Water Level Control
DN15 1/2" Adjustable Float Ball Valve – Automatic Water Level Control
Keep your water tank, reservoir, or aquarium at the perfect level — automatically. This DN15 (1/2 inch) plastic float ball valve uses a simple, proven hydraulic-mechanical design to open and close water flow without any electricity. When the water level rises to the set point, the buoyant float arm pushes the valve shut, stopping the flow. As the level drops, the valve reopens. It's hands-free water level management that works 24/7.
With a 360° adjustable float arm, you can fine-tune the exact shut-off level to suit your specific tank or trough. The lightweight, durable ABS plastic body resists corrosion and holds up to continuous cold-water use, making it a reliable long-term addition to any garden, hydroponics setup, livestock watering station, or household storage tank.
Key Features
- Automatic Shut-Off: Mechanically stops water flow when the desired level is reached — no electricity, no timers, no sensors needed.
- 360° Adjustable Arm: Rotate and set the float arm to control your exact desired water level with ease.
- Anti-Overflow Design: Prevents overfilling and water waste in tanks, towers, and reservoirs.
- Standard 1/2" Male Thread (DN15): 20mm outer diameter — fits most standard tank wall fittings for fast, straightforward installation.
- Durable ABS Plastic Construction: Lightweight, corrosion-resistant, and rated for cold water use (0–60°C) at pressures up to 0.6 MPa.
- No Power Required: Fully mechanical, hydraulic-controlled operation — works anywhere water flows.
- Side-Mount / Tank Wall Installation: Designed for easy side-mounted installation on most standard tanks and containers.
Specifications
- Product Type: Float Ball Valve
- Material: High-quality ABS Plastic
- Thread: 1/2" (DN15) male thread, 20mm outer diameter
- Float Ball Size: 96mm length × 39.5mm diameter
- Total Length: 198mm
- Working Pressure: ≤ 0.6 MPa
- Working Temperature: 0–60°C (cold water only)
- Color: Gray valve body + White float ball
- Installation Type: Side-mounted / tank wall
- Package Includes: 1 × Float Ball Valve
- Country of Origin: Made in China
Perfect For
- Hydroponics reservoirs and nutrient tanks
- Garden and agricultural water storage tanks
- Water towers and cisterns
- Aquariums and fish ponds
- RO (reverse osmosis) water systems
- Livestock watering troughs
- Small water storage containers
For guidance on safe water system maintenance and best practices, visit the EPA WaterSense Program for water efficiency tips and resources.
Frequently Asked Questions
Q: What size pipe or tank fitting does this DN15 float valve connect to?
A: This float valve features a standard 1/2 inch (DN15) male thread with a 20mm outer diameter. It is compatible with most standard tank wall fittings and side-mount connections used in home, garden, and agricultural water tanks.
Q: Does the DN15 adjustable float valve require electricity to operate?
A: No — this float ball valve is entirely mechanical and hydraulic-powered. It operates without any electricity, batteries, or electronic components, making it reliable in off-grid gardens, outdoor tanks, and remote livestock troughs.
Q: Can I adjust the water level shut-off point on this float valve?
A: Yes. The float arm features a 360° adjustable design, allowing you to set and fine-tune the exact water level at which the valve closes. Simply rotate the arm to your desired angle and the valve will automatically shut off at that level.
Q: Is this float valve suitable for hot water systems?
A: This valve is designed for cold water use only, with a working temperature range of 0–60°C (32–140°F). It is not recommended for hot water, steam, or high-temperature applications.