DN15 1/2" Adjustable Float Valve – Auto Water Level Control
DN15 1/2" Adjustable Float Valve – Auto Water Level Control
DN15 1/2" Plastic Float Valve – Automatic Water Level Control for Tanks & Hydroponics
Keep your water tank, reservoir, or hydroponic system perfectly filled — automatically. This DN15 1/2" adjustable float ball valve uses a simple hydraulic mechanism to maintain the ideal water level with zero electricity required. When the water rises to the set level, the float arm shuts off flow; when it drops, flow resumes. It's a reliable, set-and-forget solution for home, garden, and agricultural use.
Key Features
- Automatic Water Level Control – Hydraulic, mechanical operation; no power source needed
- 360° Adjustable Arm – Rotate the float arm to dial in your exact desired water level
- 1/2" DN15 Male Thread – 20mm outer diameter for standard tank wall or side-mounted installation
- High-Quality ABS Plastic Body – Lightweight, corrosion-resistant, and durable
- Anti-Overflow Auto Shut-Off – Prevents tank overflow and water waste
- Cold Water Use – Working temperature range: 0–60°C; maximum working pressure: ≤ 0.6 MPa
- Compact Size – Total length 198mm; float ball 96mm × 39.5mm diameter
- Gray valve body with white float ball – Easy to spot in tanks and reservoirs
Specifications
| Material | High-quality ABS Plastic |
| Thread Size | 1/2" DN15 Male Thread (20mm OD) |
| Float Ball Size | 96mm × 39.5mm diameter |
| Total Length | 198mm |
| Working Pressure | ≤ 0.6 MPa |
| Working Temperature | 0–60°C (cold water only) |
| Installation Type | Side-mounted / tank wall installation |
| Operation | Mechanical, no electricity required |
| Color | Gray valve body + white float ball |
| Package Contents | 1 × Float Valve |
Made in Mainland China.
Ideal Applications
- Hydroponics & aquaponics reservoirs
- Garden water tanks & water towers
- Aquariums & fish tanks
- RO (reverse osmosis) water systems
- Livestock water troughs
- Small water storage containers & cisterns
Related Products You May Like
- Browse our Watering, Hoses & Sprayers
- 2-Pack Adjustable Wall-Mount Brackets – Metal
- 34-Compartment Double-Sided Hardware Storage Box & Dividers
Learn more: OSHA on eye and face protection
Frequently Asked Questions
Q: What size fitting does this float valve use, and will it fit my tank?
A: This float valve uses a standard 1/2" DN15 male thread with a 20mm outer diameter. It is designed for side-mounted or tank wall installation, fitting most standard water tanks, reservoirs, and agricultural troughs that accept a 1/2" threaded fitting.
Q: Does this float valve require electricity or batteries to operate?
A: No. The DN15 float valve works entirely on hydraulic mechanical principles — the buoyancy of the float ball opens and closes the valve automatically as the water level changes. No electricity, wiring, or batteries are needed.
Q: Can I use this float valve with hot water or high-pressure systems?
A: This valve is designed for cold water use only, with a working temperature range of 0–60°C and a maximum working pressure of ≤ 0.6 MPa. It is not suitable for hot water, steam, or high-pressure applications beyond these limits.
Q: How do I adjust the water level with this float valve?
A: The float arm features a 360° rotation adjustment, allowing you to set the float ball position to control the exact water level you need. Simply rotate the arm to raise or lower the cutoff point before installing in your tank.