Displacer Level Switches

A reliable source for Level Switch information and leading Level Switch Companies & Manufacturers.

Because displacer level switches come into physical contact with the materials they measure, they are a mechanical level switch variety. Displacer level switches are important tools in the measurement and control of a wide variety of materials in many contexts. Particularly in post-industrial process water treatment, displacer level switches are important level measurement tools. Read More…

Displacer Level Switches A displacer level switch is a level sensor and control utility that monitors and measures the changes in buoyancy force placed on a displacer. This is accomplished through the suspension of at least one weight by a spring. Changes to the tension of the spring reflect changes in the level of the materials being measured.

Leading Manufacturers

Monterey, CA  |  800-866-0200

Sierra`s Innova-Switch&trade electronic instruments and devices represent the state-of-the-art in gaseous and liquid flow switching or liquid level control. All of our products, like the standard level switches, meet a broad range of performance and environmental application requirements. Our switches are easy to install and work reliably long term, which means you can depend on them.

Request A Quote

Sierra Instruments $$$

McDonough, GA  |  800-780-3776

We provide a full line of glass solutions including redline heavy wall glass, high pressure gage glass, clear heavy wall gage glass, and more. Our teams go out of our way to find the best products for your needs. Please give one of our representatives a call today to learn more information!

Request A Quote

BoilerSupplies.com $$$

Eagan, MN  |  800-852-9984

FPI Sensors manufactures standard and custom liquid level sensors. Our capabilities include single and multi-level float sensors, side mount, leak detection, continuous measurement, field adjustable products and custom applications. We have technology in capacitance, optical sensing and float type switches. We have the ability to modify standard products and to build complete custom designs.

Request A Quote

FPI Sensors International $$$

Oxnard, CA  |  800-562-2447

Since 1956, Harwil Corporation has been providing quality design and manufacturing of electro mechanical fluid flow and liquid level switches as well as pump emergency shutdown controllers. All of Harwil’s level switches are designed with a focus on producing simple, reliable, low cost units with broad operating flexibility in a multitude of physical, thermal and chemical operating environments.

Request A Quote

Harwil Corporation $$$

Detroit Lakes, MN  |  218-847-1317

The pioneering efforts 30 years ago made the first Tank Alert® alarm and Sensor Float® control switch. Today, SJE-Rhombus has become a leading manufacturer of reliable, trouble-free liquid level controls for the water, wastewater and sewage industries. Our complete product line includes Build-A-Panel™ control panels, engineered custom systems, Tank Alert® alarm systems, pump and control switches.

Request A Quote

SJE Rhombus $$$
placeholder image Sierra Instruments BoilerSupplies.com FPI Sensors International Harwil Corporation SJE Rhombus

In addition to their applications in water treatment, they can be used for the measurement of sludge, slurry, oil and all kinds of other material levels. Displacer level switches are versatile and reliable, though in particularly demanding or hazardous environments, they can be susceptible to corrosion or other kinds of degradation. In such applications, no-contact sensors like ultrasonic or optical sensors and switches may be more appropriate.

Displacer level switchers harness gravity and electrical signals to measure levels. Displacer level switches involve one or more weights suspended from an electrically-powered force monitoring device. When the level of measured materials rises sufficiently and the material comes into contact with the switch's suspended weight, the tension in the spring used to suspend the switch decreases.

That tension reduction is expressed as an electrical signal and is interpreted by the sensor. Depending on their construction and intended use, displacer level switches can monitor a wide range of material levels, both large and small. They may also be used in high-pressure applications. Displacer level switches may also be manufactured to meet FM, UL, NEMA, and ANSI/ISA guidelines.

Displacer level switches can be used in a variety of industrial applications, including those where the measured material may be heavy oils, dirty liquids, liquids with solids and paints. The switches can also be used in more complex applications, such as monitoring the levels of multiple vessels and their pumps. It is important to carefully pair every level switch configuration with its intended application, as some varieties can be more suitable in a given context than others.