FLOAT SWITCH FOR WATER TANK | WORKING | CIRCUIT DIAGRAM |
A float switch is a device that controls a pump or valve by utilizing a mechanical lever and a changeover relay. It operates in two states, ‘free fall’ and ‘uplift.’ Applications include circuits for filling and emptying water tanks in both single-phase and three-phase pumps, ensuring optimal operation and preventing overflows.
Why Monoblock Pumps Shouldn’t Run Dry (Damage Risks + Protection Guide)
This post explains the functioning of Centrifugal Monoblock pumps, stressing the importance of not running them dry. The Monoblock pump, which combines motor and pump, relies on water flow to keep the impeller and seals cool. Running it dry generates frictional heat, risking damage to the mechanical seals and leading to potential leaks and motor failure. To protect against dry runs, two methods are proposed: flow switch and float switch. The flow switch detects the absence of water flow, while the float switch reacts to water levels in a tank, both ensuring the pump operates safely.