304 Stainless Steel Automatic Water Tank Float Valve – 1/2" or 3/4", Top/Side Inlet

Automatically Keep Your Tank at the Right Water Level

Stop constantly checking and manually refilling water tanks, troughs, and reservoirs. This compact stainless steel float valve automatically opens when the water level drops and shuts off when the set level is reached—no electricity required.

✓ Automatic refill & shut-off
✓ 304 stainless steel construction
✓ Compact internal-float design
✓ Top or side inlet options

WHY CHOOSE THIS FLOAT VALVE?

• Stops Costly Water Waste: Automatically shuts off when the tank is full — Helps prevent tank overflow and unnecessary water waste when properly installed.

• No Electricity Required: The valve operates mechanically using water pressure and the internal float mechanism (Requires at least 3 PSI / 0.2 bar inlet pressure for reliable operation.)

• Built to Outlast Plastic Valves: Premium 304 stainless steel body resists rust, heat, and corrosion, designed for durable and low-maintenance operation.

• Set It and Forget It: Automatically maintains the water level around the valve's shut-off point — no more constant checking or manual refilling.

HOW IT WORKS

• Float Detection: The buoyant float senses water level changes.

• Automatic Control: As the water rises, the float lifts and closes the valve, stopping inflow.

• Auto Refill: When the water drops, the float lowers and reopens the valve, refilling automatically.

• Pressure-Driven: Operates purely on water pressure (3–145 PSI) — no power supply needed.

Result: consistent, automatic water level control that helps prevent overflow and reduces manual monitoring.

For Best Performance

Use with clean water. If your supply contains sediment, sand, rust particles, or debris, install an upstream filter and periodically inspect the valve.

EASY INSTALLATION

1. Connect the inlet to your water source (1/2", 3/4").

2. Mount the valve inside the tank, trough, or pond at the desired height.

3. Install using standard plumbing tools and an appropriate thread sealant/PTFE tape where required.

4. Turn on the water, and the valve will start regulating levels automatically.

Installation takes just minutes, with no electrical wiring required.

Leak-Free Installation Tips

1. Verify the correct thread type and size.
2. Clean both threaded surfaces.
3. Apply suitable PTFE tape or thread sealant.
4. Install the supplied gasket where applicable.
5. Tighten securely without over-tightening.
6. Pressurize slowly and check all connections before unattended use.

For indoor or unattended installations, use a separate emergency overflow/drain as a backup against flooding.

Set Your Desired Water Level

Install the valve so the shut-off/control line aligns with your desired maximum water level. As the water reaches this point, the internal float rises and automatically closes the inlet.

COMPACT DESIGN, STRONG WATER FLOW

The compact internal-float design takes up less tank space than traditional long-arm float valves while automatically controlling incoming water.

NO ELECTRICITY / NO MANPOWER

Works autonomously without the need for external power sources or manual intervention.

304 STAINLESS STEEL CONSTRUCTION

Constructed from 304 stainless steel for durability, corrosion resistance, and long-term water-system use.

WIDE SCOPE OF APPLICATION

Suitable for a diverse range of applications, including water tanks, irrigation reservoirs, livestock troughs, ponds, and similar water-level control applications.

EASY MAINTENANCE AND CLEANING

Simple disassembly without specialized tools for hassle-free cleaning and removal of debris or sediment.

SPECIFICATIONS

• Material: 304 Stainless Steel
• Available Sizes: 1/2" / 3/4"
• Inlet Options: Top Inlet / Side Inlet
• Operation: Automatic Mechanical Water-Level Control
• Power Required: None
• Operating Pressure: Approx. 0.2–10 bar (3–145 PSI)
• Recommended Medium: Clean Water
• 1/2" Top-Inlet Size: Approx. 90.1 mm × 48.6 mm / 3.55" × 1.91"
• 1/2" Thread Length: Approx. 11.5 mm / 0.45"
• 1/2" Thread Diameter: Approx. 20–21 mm
• Operating Water Temperature: 1–80°C / 34–176°F
• Thread Standard: NPT

PACKAGE INCLUDES

Top Inlet

• 1 × Float valve
• 1 × connection fitting
• 1 × sealing gasket

Side Inlet

• 1 × Float valve
• 1 × 90° elbow
• 1 × connection fitting
• 1 × sealing gasket