1/4 Inch Mechanical Water-Level Float Valve

Keep a refill tank topped up with a valve that responds to the water level. This mechanical float valve opens as the float falls and closes the inlet as the water raises it, without an electronic controller.

Automatic Refill Through a Simple Float Mechanism

• ✅ Refill as the level drops: the moving float operates the inlet so water can enter when the tank level falls.
• ✅ Control the level without wiring: the mechanical design works without an electrical supply.
• ✅ Adjust the float position: the hinged arm lets you align the float with the space available in your tank.

Match the 1/4 inch connection to your refill line and leave room for the float to move freely. Check the mounting and water pressure against your installation requirements, then test the shut-off after fitting.

Specifications: mechanical water-level float valve with an articulated arm and 1/4 inch connection. The valve is a refill-system component; the tank and tubing are separate.

The photos show the float, adjustable joint, connection and example tank installation.

Choose this float valve for a compatible tank refill system.