1/2 Inch Float Ball Valve – Automatic Fill Shut-Off, ABS & PE
1/2 Inch Float Ball Valve – Automatic Fill Shut-Off, ABS & PE
Plastic Float Ball Valve – Automatic Fill & Shut-Off for Water Tanks
Keep your water tanks, cisterns, and reservoirs at the perfect level automatically — no electricity required. This durable 1/2 inch float ball valve is engineered for high efficiency, offering large water flow, excellent sealing, and wide compatibility with residential, agricultural, and industrial water systems.
Key Features
- Electricity-Free Operation: Fully mechanical design — no wiring, no power source needed.
- High-Flow Performance: Designed for large water flow and optimal fill efficiency.
- Superior Sealing: ABS body with EPDM washer and NR valve core for a leak-resistant, long-lasting seal.
- Durable Materials: ABS plastic body + PE floating ball — resistant to corrosion and suitable for water, weak acid media, and high-corrosive media.
- Wide Temperature & Pressure Range: Operates in temperatures from -30°C to 70°C (-22°F to 158°F) and pressures of 0.02–1.0 MPa.
- Easy Installation: Standard DN15 (1/2 inch) thread size fits most tanks and water systems. Flexible and simple to set up.
- Available in Two Colors: White or Black to suit your preference.
Specifications
| Overall Size | 20 × 2 × 3.9 cm (7.87 × 0.79 × 1.54 in) |
| Body Material | ABS Plastic + EPDM Washer |
| Float Ball Material | PE (Polyethylene) |
| Valve Core Material | NR (Natural Rubber) |
| Thread Size | DN15, 1/2 inch |
| Water Temperature Range | -30°C to 70°C |
| Water Pressure Range | 0.02 – 1.0 MPa |
| Compatible Media | Water, high-corrosive media, weak acid media |
| Color Options | White / Black |
| Package Includes | 1 × Float Ball Valve |
| Country of Origin | Made in China |
Where to Use It
This float valve is ideal for water storage tanks, livestock troughs, irrigation systems, cisterns, toilet fill valves, and any application where automatic water-level control is needed. The electricity-free, purely mechanical operation makes it reliable and low-maintenance in virtually any environment.
For guidance on safe drinking water systems and plumbing standards, visit the EPA WaterSense Program.
Important Notes
- Actual product color may vary slightly from images due to monitor settings and lighting conditions.
- Please allow for minor measurement tolerances of ±1–2 mm.
Frequently Asked Questions
Q: What is a float ball valve and how does it work?
A: A float ball valve is a mechanical device that automatically controls water flow into a tank or cistern. As the water level rises, the buoyant PE float ball rises with it, mechanically closing the valve to stop water flow. When the water level drops, the float lowers and reopens the valve, allowing water to refill automatically — all without any electricity.
Q: What thread size does this float valve use, and will it fit my tank?
A: This float valve uses a standard DN15 (1/2 inch) thread, which is one of the most common sizes used in residential and agricultural water tanks, cisterns, and plumbing systems. If your tank or feed line has a 1/2 inch threaded inlet, this valve should fit directly.
Q: Is this float valve suitable for outdoor or agricultural use?
A: Yes. Its wide operating temperature range (-30°C to 70°C) and pressure range (0.02–1.0 MPa), combined with its corrosion-resistant ABS and PE materials, make it well-suited for outdoor tanks, livestock troughs, garden water storage, and irrigation systems.
Q: Does this valve require any special tools or skills to install?
A: No special tools are required. The standard 1/2 inch threaded connection makes installation straightforward. Simply thread it into the tank inlet and adjust the float arm angle as needed to set your desired water level.