Automatic Float Valve 1/2" 3/4" 1" Water Level Control Valve
Automatic Float Valve 1/2" 3/4" 1" Water Level Control Valve
Automatic Water Level Control Float Valve – 1/2", 3/4" & 1" Sizes
Keep your water tank, pool, or water tower at the perfect level — automatically. This nylon ball float valve is a modern, reliable replacement for traditional float ballcocks. Once installed, it opens when water levels drop and closes when the tank is full, requiring no electricity and minimal maintenance.
Made in Mainland China.
Key Features
- Fully Automatic Operation – Opens when the water level falls; shuts off automatically when the tank is full. No manual intervention needed.
- Four Intake Ports – High-volume water flow for faster tank refilling.
- No Electricity Required – Purely mechanical, hydraulic-pressure-driven operation keeps running costs at zero.
- Three Size Options – Available in 1/2", 3/4", and 1" to suit a wide range of inlet pipe sizes.
- Durable Nylon Construction – Lightweight, corrosion-resistant plastic body built for long service life and low failure rates.
- Compact & Easy to Install – Small footprint with a straightforward installation process; no special tools required.
- Water-Saving Design – Precise cutoff prevents overflow and conserves water resources.
Specifications
| Model | HTFQF |
| Material | Nylon / Plastic |
| Available Sizes | 1/2", 3/4", 1" |
| Working Pressure | 1–10 KG (0.1–1 MPa) |
| Applicable Medium | Clean water |
| Max Operating Temperature | ≤ 70°C |
| High-Temp Resistance | 70°C – 120°C |
| Certifications | CCC, CE |
| Origin | Mainland China |
How It Works
When the water level in your pool or tank drops, the float sinks, opening the pilot control valve. Water pressure then opens the main seal face, allowing water to flow in. As the water level rises and the float lifts back up, the valve closes automatically — stopping flow and preventing overflow without any electrical input.
Installation Notes
- The float must be installed vertically; use an elbow fitting if mounting from the top.
- Fix the feed line in a horizontal plane before connecting the float valve.
- Match the main water inlet diameter to the valve's nominal diameter (1/2", 3/4", or 1").
- Keep the globe valve fully open during use.
- If installing two valves in the same tank, ensure both are level on the same horizontal plane.
- Flush pipes to remove debris before installation to prevent blockages.
- In areas with lower water quality, periodic maintenance is recommended.
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Frequently Asked Questions
Q: What sizes are available for this automatic float valve?
A: This water level control float valve is available in three standard pipe sizes: 1/2 inch, 3/4 inch, and 1 inch. Choose the size that matches your existing water inlet pipe for a secure, leak-free fit.
Q: Does this float valve require electricity to operate?
A: No — this float valve is entirely mechanical. It operates purely on water pressure, so there is no need for any electrical connection, wiring, or power supply. This makes it ideal for remote water tanks, water towers, and off-grid setups.
Q: What applications is this water level control valve suitable for?
A: This automatic ball float valve is suitable for high-mounted water tanks, rooftop water towers, swimming pools, irrigation reservoirs, and industrial or civil water storage systems. It works with clean water at temperatures up to 70°C under normal operation.
Q: How do I maintain this nylon float valve?
A: The valve is designed for low maintenance. If you notice water filling more slowly than usual, remove and flush the water inlet to clear any sediment. In areas with harder or less-clean water, periodic inspection and light cleaning will help extend its service life.