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Float Level Switches

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Float level switches are useful in many contexts. In wastewater treatment plants, the amount of water in a purification system is usually measured by some kind of float level sensor or switch. Level control switches are also used in the agriculture industry, pharmaceutical products development, a variety of manufacturing processes and in an extensive variety of other applications. Read More…

Float Level Switches Float level switches are utilities that monitor and control the level of liquids in storage and transmission systems. There are many cases in which the accurate measurement of liquid levels in a storage enclosure or transmission apparatus is essential. In fuel storage tanks, for example, fuel levels often cannot be determined by any other means than with a float level switch.
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Leading Manufacturers

Monterey, CA  |  831-373-0200

Sierra`s Innova-Switch™ electronic instruments and devices represent the state-of-the-art in gaseous and liquid flow switching or liquid level control.

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Sierra Instruments $$$

Minnetonka, MN  |  800-328-6170

Electro-Sensors manufactures a complete line of motion monitoring and speed control systems for industrial machinery including: Speed Sensors, Speed Sensitive Switches, Tachometers, Counters, Speed to Analog Converters, Digital Pulse Generators, Closed Loop Motor Speed Control Systems, and Material Level Controls. We have over 35 years experience manufacturing reliable products.

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Electro-Sensors, Inc. $$$

Fultonville, NY  |  800-833-0081

Anderson-Negele is a leading designer and manufacturer of high-quality pressure gauges, pressure switches, level switches and other transmitter instruments for the sanitary process of a variety of industries such as beverage, dairy, fluid food, biopharmaceutical. Our instrumentation will meet or exceed all requirements for performance, reliability, cleanability, and sterilization.

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Anderson-Negele $$$

Plainville, CT  |  855-877-9666

Over 50 years of sensors and controls development experience is only one of the many advantages to choosing Gems Sensors & Controls. We offer high quality switch and sensor solutions including standard level switches to suit your needs. Gems' expert team, cost-efficiency and commitment to lean manufacturing are further benefits to our valued customers. Call us today!

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Gems Sensors & Controls $$$
placeholder image Sierra Instruments Electro-Sensors, Inc. Anderson-Negele Gems Sensors & Controls

Many sump pump varieties also require float level switches in order to function correctly. Float level switches offer many attractive qualities to their users. They are generally simple in design, which makes them easy to operate and can make them inexpensive. Electrical interference does not affect float level switches. Depending on their intended use, float level switches can be constructed from materials that allow them to function in high-temperature and high-pressure environments.

Different level switches function in different ways. A level management tool can be used for the measurement of material levels in a system, or it can be used for both measurement and control. The simplest float level switch would consist of a hollow, buoyant bulb that would, upon contact with rising liquid levels, become raised, which would trigger a mechanism within the equipment to which the bulb is attached.

Such systems transmit level data based on whether or not their internal circuitry is open or closed. When a level switch bulb is descended, for example, the internal circuitry to which it is attached is usually open. When it rises enough, the circuit becomes closed, sending a signal to monitoring equipment.

In some cases, that monitoring equipment doubles as control equipment, allowing for the automatic adjustment of level control apparatus. Such devices are very helpful in preventing overfilling of storage tanks and other similar equipment; when material levels reach a certain level in an enclosure, the float level switch registers the level and sends signals to equipment that can prevent the level from rising any higher.