Liquid Level Float Switches

Float switches are the most common device used to monitor liquid levels. They rely on a float ball that moves along a rod or through tube as liquid rises or falls, triggering a magnetic or mechanical switch at specific points. These are widely used in sump pumps, steam traps, vacuum tanks, and chemical processing tanks for reliable level detection.

A liquid level sensor detects and measures the height of liquid within a container, converting the physical level into a readable signal. Float-type sensors use a buoyant stainless steel ball that moves with the liquid surface, often paired with magnets or through tubes to activate switches at defined thresholds for automated control systems.

Float balls are typically constructed from 304 or 316 stainless steel, chosen for their corrosion resistance and durability compared to plastic alternatives. 316 stainless steel is preferred for highly corrosive environments such as chemical processing, while 304 stainless steel suits general industrial and food processing applications. Other materials are available upon request.

Yes, float balls can be custom-fitted with magnets sourced and assembled inside the ball to enable precise switch activation in complex liquid level systems. This magnetic integration allows the float to trigger reed switches or sensors accurately as it moves along a rod, making it ideal for sump pumps, vacuum tanks, and automated control applications.

Float balls are available in round sizes ranging from 1-1/2 inch to 14 inch diameter, and oblong shapes such as 7 x 12 inch or 9 x 14 inch with various thread fittings. Custom sizes and shapes can also be manufactured to match exact tank dimensions, rod diameters, and thread specifications for any application.

Yes, float balls are pressure-tested using dedicated equipment to meet custom specifications, ensuring reliable performance in high-pressure environments like vacuum tanks and steam traps. This testing verifies structural integrity and leak resistance, giving operators confidence the float will perform consistently in demanding industrial conditions over the long term.