This valve is a replacement for traditional float ballcocks, suitable for various systems such as high water tanks, pools, and water towers in industrial and civil construction. Automatic control with low supplementary water, stops automatically when full. Four inlets for large water volume. Beautiful appearance, compact size, practical, and easy to install. No electricity required, easy to use, long service life, low failure rate, saves water resources. Working pressure range: 0.2-10kg. Applicable medium: clean water. Applicable medium temperature: ≤70℃. Size (L*W): Approx. 83*71mm / 3.27*2.8inch. Diameter: Approx. 46mm / 1.81inch. Package Includes: 1 x Water Valve. Note: This product belongs to liquid valves. When installing, the float must be vertical. If installing from the top, an elbow is needed to connect the float valve and the inlet first. The feed should be fixed in a horizontal plane, then connect the automatic water valve to the water inlet according to standards. The main water inlet should match the control valve's normal diameter. When in use, the valve should be fully open. If two valves are installed in the same pool, they must be at the same horizontal level. Before installation, please clean impurities in the inlet to prevent blockage. If the water quality is poor, proper maintenance of the valve is required. If the water filling time becomes longer, just disassemble the water inlet and clean it.