Water Tank Level Gauges & Indicators

Water levels in tanks are commonly monitored using float-based level gauges. A stainless steel float ball attached to a rod, through tube, or valve arm tracks the liquid surface. For automated systems, float balls with integrated magnets can trigger sensors or switches, enabling continuous level monitoring without manual inspection in industrial or process control environments.

A basic water level indicator can be assembled using a stainless steel float ball with a custom thread or through tube fitting connected to a rod or cable. As the tank fills, the float rises and drives a visual indicator or electrical switch. For more precise systems, magnet-integrated float balls can activate reed switches or magnetic sensors at set level thresholds.

A float ball system provides a reliable way to detect when a tank is full. When the liquid reaches the set level, the float rises to its maximum position, mechanically shutting off a fill valve or triggering a sensor. Stainless steel float balls with magnet integration can activate alarms or automated shutoff systems to prevent overflow in industrial tanks.

Float balls are available in 304 stainless steel, which is the most commonly used grade, and 316 stainless steel for applications involving corrosive or harsh liquids such as chemicals and seawater. Other materials can be sourced upon request. Stainless steel is preferred over plastic for its durability, pressure resistance, and suitability across food processing, chemical, and wastewater environments.

Yes. Float balls can be fully customized with specific thread sizes, NPT fittings, through tube dimensions, magnet integration, and surface finishes including matte, brushed, or polished mirror. Custom sizes in both round and oblong shapes are available. All custom floats can be pressure-tested to meet your system specifications before shipping directly to your facility worldwide.

Round float balls are spherical and suit general-purpose level control in tanks, sump pumps, and valves. Oblong or oval floats have an elongated shape that provides greater buoyancy and surface contact, making them better suited for larger tanks, vacuum systems, and applications requiring more precise level triggering. Both shapes are available in multiple sizes with custom thread and fitting options.