Liquid Level Sensors for Leachate Tanks from SMD Fluid Controls

a landfill

When rain falls over landfills, the water passes through the collected waste and becomes a hazardous liquid known as leachate. Left alone, this leachate will seep into the groundwater and contaminate nearby rivers, streams, and other bodies of water.

That’s why leachate diversion, storage, and treatment are required in much of the world. This process can be complicated, requires a network of hardware such as storage tanks and liquid level sensors. Level sensors for leachate storage tanks are used to monitor levels, detect leaks, and activate overflow alarms.

If you’re looking for liquid level sensors for leachate tanks or other wastewater treatment applications, SMD Fluid Controls has a number of standard and custom solutions. Read on or get in touch to learn more. (more…)

Float Switches and Liquid Level Sensors for Aerospace Industries

gauges in an airplane cockpit

Float switches and liquid level sensors are crucial components in a number of industries, and aerospace is no exception.

Liquid level sensors for aerospace are used for a variety of applications, including the following:

If you’re in the aerospace industry and you’re looking for liquid level sensors for any of these or other applications, contact SMD Fluid Controls today. (more…)

Urban Flash Flood Detection Systems Utilize Ultrasonic Level Sensors

people travelling along a flooded city street

The past month has seen some of the most devastating flooding in recent American history. With Houston and the Gulf Coast devastated by Hurricane Harvey and numerous Caribbean islands, Florida, and even southern portions of Alabama and Georgia flooded in the aftermath of Hurricane Irma, flooding is on the forefront of many Americans’ minds.

Flooding can be particularly harmful in urban areas and cities. This is not only because of their population density, but also because physical infrastructure that makes natural water runoff difficult or impossible.

That’s why flood detection systems are so important. Without early warnings, residents of cities and towns may not be able to evacuate and preserve property. So how can cities implement flood detection systems? (more…)

The Disadvantages of Ultrasonic Liquid Level Sensors

black sound waves against a white background

When it comes to liquid level sensors, there are many different styles to choose from.

Standard float switches are probably the most popular and well-known options, but there are also more sophisticated units like hydrostatic pressure sensors, optical liquid level sensors, and more.

Ultrasonic liquid level sensors, which use pulses of ultrasonic sound to calculate liquid levels, are versatile and extremely reliable. But like any level sensing technology, they have pros and cons.

If you’re wondering if ultrasonic liquid level sensors are right for your application, take a look at some of their disadvantages below. If any are relevant to you, it’s probably best to try a different sensor technology. (more…)

Continuous Liquid Level Sensors: Ultrasonic & Hydrostatic Pressure Sensors

In liquid level measurement, sensors can be thought of as having two general classes: point-level and continuous.

Point-level liquid level sensors detect the absence or presence of liquid at a certain point. Overflow alarms and low-level alarms to detect leaks are examples of applications that use point-level sensors.

But for applications where precise liquid levels need to be known at any given point, especially when they fluctuate frequently, continuous liquid level sensors are required. Fuel level sensors are an example of a continuous level sensor.

If you’re looking for continuous liquid level sensors for any industrial application, SMD Fluid Controls has a number of options.

Get in touch with SMD Fluid Controls or keep reading to learn more. (more…)

Liquid Level Sensors with No Moving Parts

the surface of water

For many people, “liquid level sensor” is synonymous with “float switch.”

Traditional float switches work thanks to a magnetic reed, breaking or connecting an electrical circuit when liquid levels reach a specified point via a specialized float.

For most applications where liquid levels need to be measured within a tank or other vessel, float switches work perfectly, especially considering the variety of custom options—mounting position, chemical compatibility, and more. (more…)

Float Switches for Well Pumps

An old green water pump attached to a well.

Wells have been an important part of human infrastructure for thousands of years. Water is essential for everyday life, and wells make it possible to rely on a clean, ready source of fresh drinking water right beneath one’s feet.

While primitive wells rely on buckets and rope or other relatively simple machine to retrieve water from the bottom, more sophisticated ones use electronic pumps.

Electronic well pumps use a variety of components to retrieve water from the bottom of the well. One of the most important in many pump systems is the float switch or other liquid level sensor. (more…)

Float Switch Failure Contributes to Seattle Wastewater Spill

A view of the Puget Sound with the Space Needle in the foreground.

A view of the Puget Sound in Seattle. Photo credit: Kate Wellington via Flickr/CC BY 2.0

Just how big of an impact can one or two float switches have? According to reports, a combination of a power outage and failing float switches at Seattle’s West Point Treatment Plant caused millions of gallons of raw sewage and untreated runoff to end up in the United States’ second-largest estuary. The plant, the largest in Washington State, is in the process of cleaning it up and figuring out what went wrong. (more…)