Automatic Float Valve Water Level Control for Tanks & Solar
Automatic Float Valve Water Level Control for Tanks & Solar
Romellar Automatic Float Valve – Smart Water Level Control for Tanks & Solar Heaters
Keep your water tank, solar water heater, or water tower perfectly filled — automatically and without a single watt of electricity. The Romellar Automatic Float Valve uses a precision float mechanism to stop water flow the moment your tank reaches capacity, then opens again as the level drops. No wiring, no sensors, no manual topping up.
Made in Mainland China.
Why Choose This Float Valve?
- Electricity-Free Operation: Fully mechanical design — no power source required, making it ideal for rooftop solar water heaters and remote tanks.
- 20% Greater Water Output: Engineered inner-installation design delivers up to 20% more flow compared to traditional float valves.
- Food-Safe Nylon Body: Made from food-contact-grade, environmentally friendly nylon — no harmful substance release, safe for drinking water tanks.
- 304 Stainless Steel Nut: Rust-resistant fastening hardware prevents secondary contamination, ensuring long-term water purity.
- High-Temp & High-Pressure Rated: Operates in temperatures from 0–70°C and handles pressures from 0.2 kg up to 10 kg — built tough for demanding environments.
- Compact & Space-Saving: Slim angle-structure design fits inside tanks without taking up valuable interior space.
- Wide Application: Perfect for water tanks, water towers, solar water heaters, swimming pools, livestock & poultry tanks, aquaculture systems, and aquariums.
Specifications
| Brand | Romellar |
| Item Type | Automatic Float Valve (Water Level Control) |
| Material | Food-grade Nylon body; 304 Stainless Steel nut |
| Structure | Angle (Inner Installation) |
| Water Inlet Method | Top Water Inlet |
| Operating Pressure | Min 0.2 kg – Max 10 kg |
| Operating Temperature | 0–70°C |
| Power Required | None (Electricity-Free) |
| Origin | Mainland China |
What's in the Box?
- 1 × Automatic Float Valve
- 1 × Connecting Tube
- 1 × Filter
- 1 × Tape
Installation Notes
- Before installation, flush the pipeline to clear any debris or impurities.
- Mount the valve vertically on a horizontal surface for correct float operation.
- Follow the arrow on the valve body — the arrow points in the direction of water outflow.
- If using a water pump, ensure the pump lift does not exceed 150 meters to allow the valve to shut off properly.
Learn More About Safe Water Systems
For guidelines on safe drinking water storage and plumbing best practices, visit the CDC Healthy Water – Drinking Water resource.
Frequently Asked Questions
Q: What types of tanks is this automatic float valve compatible with?
A: This automatic float valve is compatible with a wide range of water storage applications, including household water tanks, rooftop solar water heaters, water towers, swimming pools, livestock and poultry drinking troughs, aquaculture tanks, and aquariums. Its inner-installation, angle-structure design makes it versatile and easy to fit in most standard tank configurations.
Q: Does the automatic water level control valve require electricity to operate?
A: No — this float valve is completely electricity-free. It operates entirely on mechanical float action: as water rises, the float rises and shuts off the inlet; as water is used and the level drops, the float lowers and reopens the inlet. This makes it energy-saving, low-maintenance, and ideal for off-grid or rooftop installations.
Q: Is this valve safe for use in drinking water tanks?
A: Yes. The valve body is made from food-contact-grade, environmentally friendly nylon that does not release harmful substances into the water. The fastening nut is 304 stainless steel, which is rust-resistant and prevents any secondary contamination, making it suitable for potable water storage tanks.
Q: What is the maximum water pressure this float valve can handle?
A: The valve operates within a pressure range of 0.2 kg (minimum) to 10 kg (maximum). If a water pump is used, the pump lift must not exceed 150 meters to ensure the valve can properly stop water flow when the tank is full.