Float valve 3/8" — No name, model 171-48800000-00

Float valve 3/8" (model 171-48800000-00) is a mechanical liquid level control device with a 3/8-inch threaded connection designed for automatic shut-off and refill of tanks and cisterns. The valve operates by translating the vertical movement of a float into an internal mechanism that opens or closes water flow to maintain a preset level. It is intended for general water supply and potable water systems where a compact, reliable 3/8" inlet fitting is required.

Advantages

The float valve provides automatic level control without the need for electrical power, offering simple and reliable operation. Its 3/8" connection makes it compatible with common plumbing fittings used in small tanks and cisterns. The mechanical design reduces the risk of electronic failure, and the valve is suitable for continuous use in domestic and light commercial water supply applications.

Suitable for

• Small domestic water tanks and cisterns
• Secondary water supply or storage containers
• Plumbing systems requiring a compact 3/8" inlet valve
• Potable water applications where mechanical level control is acceptable

Key specifications

• Connection size: 3/8" threaded inlet
• Operation: mechanical float-actuated valve
• Application: water level control for tanks and cisterns
• Material: corrosion-resistant components suitable for water use (manufacturer specification)
• Recommended fluid: potable water and general water supply

How to use

Install the float valve into the tank wall or inlet fitting using the 3/8" threaded connection, ensuring a watertight seal with appropriate tape or gasket. Adjust the float arm or mounting position according to the required fill level following the manufacturer's installation guidance. After installation, slowly open the supply to check for leaks and observe the valve operation as the tank fills and the float rises to close the valve. Periodically inspect for debris or wear that may affect seal performance.

Usage recommendations

Use clean water free of large particulates and ensure inlet filters or strainers are in place to prolong service life. If installed in potable water systems, follow local plumbing codes and use approved sealing materials. Perform regular inspections and maintenance to verify correct operation and replace the valve if mechanical wear compromises sealing or movement.