Showing all 2 results
£50.00
£65.00
A float switch is the simplest way to start and stop a pump automatically. The float tilts as the liquid level rises or falls, making or breaking a contact to switch the pump or trigger an alarm. Non-mercury designs utilise a weighted ball that activates a microswitch, eliminating the need to handle or dispose of hazardous waste. Built-in hysteresis prevents nuisance switching on a turbulent surface.
General-purpose paddle floats, such as the LR03, are compact and cost-effective, and suit clean water, grey water, rainwater harvesting, irrigation tanks and sump wells. Heavy-duty weighted floats, such as the LRW8, are built for sewage and wastewater: the internal weight cuts through crust layers and the tear-drop profile sheds solids. Check specific gravity, temperature and cable compatibility against the liquid in your tank.
Cable length sets how far the float can sit below its mounting point, so match it to tank depth and your switching levels. Check the contact rating against your pump: larger motors should be switched through a relay, contactor or control panel. Floats without an integral weight need a tether or counterweight to set the switching angle.
If your questions have not been answered here, get in touch with our team for more information.
Float switches provide automatic level control in tanks, sumps and wet wells. They start and stop pumps at set levels, protect pumps against running dry, and act as high or low level alarm triggers.
General purpose floats are lighter and more compact, and are intended for clean water, grey water and other relatively free-flowing liquids. Heavy-duty floats have an integral weight and a shaped body so they can break through crust layers and shed solids, which makes them suited to sewage and wastewater.
It can, provided the pump’s electrical load is within the float switch’s contact rating. Anything above that rating, or any three-phase pump, should be switched through a relay, contactor or pump control panel.
The stocked range suits water, grey water, sewage, wastewater, irrigation water and many chemical effluents where polypropylene and CPE are compatible. Check the specific gravity and temperature of the liquid against the datasheet, and avoid fuels and solvents unless the datasheet confirms compatibility.
Absolutely! If you’re unsure which float switch is the best fit for your application, our team is here to help. You can pop up to our live chat for instant support, or simply send your requirements and details to sales@tfpumps.com. One of our experts will quickly recommend the most suitable option for your needs.
