Automatic Float Valve 1/2" 3/4" 1" – Water Level Regulator

Automatic Float Valve – Fully Auto Water Level Regulator & Refill Controller

Keep tanks, troughs, ponds, and plumbing systems perfectly filled with this fully automatic float valve. Available in 1/2" (4-point), 3/4" (6-point), and 1-inch sizes, this precision filling valve opens when the water level drops and shuts off automatically once the desired level is reached — no manual intervention required.

Whether you're managing a livestock water trough, aquaponics tank, swimming pool float, cistern, or agricultural irrigation setup, this heavy-duty float valve delivers consistent, hands-free water level regulation.

Key Features

• Fully Automatic Operation: Float-activated mechanism opens and closes the valve based on water level — no electricity needed.
• Multiple Thread Sizes: Available in 1/2" (DN15), 3/4" (DN20), and 1" (DN25) for versatile plumbing compatibility.
• Durable Construction: Built to withstand continuous water flow and extended use in demanding environments.
• Water-Saving Design: Automatically stops water flow when the tank is full, preventing overflow and reducing waste.
• Wide Application Range: Ideal for water tanks, livestock troughs, ponds, aquaponics systems, cisterns, rooftop tanks, and irrigation reservoirs.
• Easy Installation: Standard threaded connection fits most existing plumbing fittings with no special tools required.
• Reliable Shut-Off: Float-arm mechanism provides a positive, leak-free seal every time.

Specifications

• Type: Filling / Float Valve
• Available Sizes: 1/2" (4-point), 3/4" (6-point), 1-inch
• Connection Type: Threaded (BSP/standard plumbing)
• Operation: Fully automatic, float-arm actuated
• Application: Water tanks, ponds, troughs, cisterns, reservoirs
• Country of Origin: Made in China

Applications

• Domestic and commercial water storage tanks
• Livestock and agricultural water troughs
• Aquaponics and fish pond systems
• Rooftop and underground cisterns
• Irrigation reservoirs and holding tanks

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For more information on safe plumbing materials and water system standards, visit the U.S. EPA WaterSense Program for guidance on water efficiency and best practices.

Frequently Asked Questions

Q: What thread sizes does this automatic float valve come in?

A: This fully automatic float valve is available in three standard thread sizes: 1/2" (4-point/DN15), 3/4" (6-point/DN20), and 1-inch (DN25), making it compatible with a wide range of residential, agricultural, and commercial plumbing systems.

Q: Does this float valve require electricity to operate?

A: No — this is a fully mechanical, float-actuated valve. It requires no electricity or external power source. The float arm rises and falls with the water level, automatically opening and closing the valve without any wiring or batteries.

Q: What applications is this automatic water level regulator suitable for?

A: This float valve is ideal for water storage tanks, livestock troughs, aquaponics and fish pond systems, rooftop cisterns, underground reservoirs, and agricultural irrigation holding tanks. Any application that requires automatic refilling and overflow prevention can benefit from this valve.

Q: How do I install this float valve?

A: Installation is straightforward — simply thread the valve into your tank's inlet port using its standard BSP threaded connection. No special tools are needed. Ensure the float arm has room to move freely and adjust its position to set your desired water level.