Skimp on your level switch and you're flirting with disaster. Level switches trigger pumps, valves or alarms that prevent overfilling or draining. Whatever is in the tank, an American-made level switch from Thomas Products LTD provides safe and reliable liquid level indication.
Liquid Level Switch Basics
A level switch consists of a float that rises and falls with the liquid in the tank. On reaching preset levels — full or empty — the float activates a switch. That sends a signal you use to operate a pump, valve or alarm.
The side-mount liquid level switch is the least complex design. This looks like the ball valve found in a toilet cistern. More sophisticated models use one or more floats riding on a vertical shaft. Inside each float, there's a permanent magnet. As it passes over a switch in the shaft, a signal is sent.
Sometimes referred to as narrow level differential, float switches of this type can send a series of signals as the liquid level rises or falls. Liquid level switches are available for top or bottom mounting. Tank level switches mount on the side, while a leak-detecting switch does exactly what the name suggests.
Applications for Liquid Level Switches
It's usually best not to empty a tank completely, as that can draw sediment. A tank level switch will send a signal before that happens, closing a valve or operating a pump.
Overfilling is bad, too. It can compromise the quality of product being processed or stored, push the tank beyond design specifications, and even lead to catastrophic spills.
Level switches play a role in every liquid handling and storage process. From water treatment and distribution to chemical manufacturing, power generation, and food and beverage production, every industry benefits from our reliable flow switches.
Level switches for tanks are “fit and forget” devices. Not easily inspected or serviced, the only indication of a fault is flood or drought. The resulting costs can be astronomical, even including lawsuits and fines. That's why it's essential your liquid level switches are made from the highest-quality components. An inexpensive level switch could be a costly mistake!
The Thomas Products LTD Difference
We source quality materials from reputable vendors. Our processes and people are certified, and we design for reliability. With Thomas Products LTD, you can trust the durability of every float and level switch we produce.
Our level switch catalog describes the many standard tank level switches we offer. Click the link for details and please search our inventory. We also understand that demanding applications sometimes require a unique solution. That's why we'll design a custom level switch or custom float switch to suit your needs.