304 Stainless Steel Float Ball Valve – Auto Water Level Control

Stainless Steel 304 Float Ball Valve – Automatic Water Level Control for Tanks & Towers

Keep any water tank, tower, trough, or reservoir at the perfect level — automatically. This compact 304 stainless steel float ball valve opens and closes based on water level, eliminating overflow and the need for constant manual monitoring. Available in 1/2", 3/4", and 1 inch (DN15 / DN20 / DN25) sizes to suit a wide range of plumbing setups.

Made in Mainland China.

Key Features

• Durable 304 Stainless Steel Construction – Corrosion-resistant and built to last in both indoor and outdoor environments, including wet or humid conditions.
• Easy Installation – Compact mini design with male BSP threaded connection. Includes a 1/2" to 3/4" adapter and a 1/2" elbow for added versatility. Compatible with NPT threads when PTFE tape is applied.
• Wide Pressure Range – Operates reliably between 10 PSI and 150 PSI (<850 kPa). Working temperature range: 0°C to 100°C.
• Built-In Filter – A filter at the water inlet prevents sand, grit, and debris from clogging the float mechanism, reducing maintenance and extending service life.
• Vertical Shut-Off Design – The vertical float arm is ideal for tanks and towers where space is at a premium.
• Hexagon Head / Casting Construction – Precision cast with a hexagonal head for easy tightening with standard tools.

Wide Range of Applications

• Water storage tanks and towers
• Swimming pools and garden fountains/waterfalls
• Livestock watering troughs (cattle, poultry, horses)
• Automatic chicken waterers
• Rain barrels and outdoor water buckets
• Irrigation reservoirs and agricultural systems

Specifications

⚠️ Important Safety Note

If this float valve is used indoors, always install an emergency overflow system. As with any automatic filling device, a malfunction may occur over time. It is best practice to set the minimum water flow required to maintain the desired water level and to inspect the valve periodically.

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For more guidance on safe water system installations and plumbing best practices, visit the U.S. EPA WaterSense Program.

Frequently Asked Questions

Q: What thread types does this float ball valve support?

A: The float ball valve uses BSP (British Standard Pipe) threads. It is also compatible with NPT (National Pipe Thread) systems — simply wrap the external thread with PTFE tape before connecting for a watertight seal.

Q: What sizes are available for this stainless steel float valve?

A: This float ball valve is available in three sizes: 1/2 inch (DN15), 3/4 inch (DN20), and 1 inch (DN25), making it suitable for a wide range of water tanks, towers, troughs, and irrigation setups.

Q: What is the maximum water pressure this float valve can handle?

A: The valve operates safely within a water pressure range of 10 PSI to 150 PSI (less than 850 kPa). If the water pressure falls outside this range, the valve may not function correctly or could be damaged.

Q: Does the float ball valve include a filter, and why is it important?

A: Yes, a built-in filter is included and should always be installed at the water inlet. This filter prevents sand, gravel, and debris from entering and clogging the float mechanism, ensuring reliable, long-term operation with minimal maintenance.

Q: Can this valve be used for livestock watering systems?

A: Absolutely. This float valve is widely used for automatic cattle, horse, and poultry watering systems. The stainless steel 304 construction makes it durable enough for outdoor and agricultural environments.