The FS20-X090 float switches, made from 316 stainless steel and custom designed for high-pressure applications, these models feature a weighted float with a specific gravity of .90 with 150°C max temperature and a max pressure of 750 PSIG.
We can offer this in a variety of switching powers including a 100W SPDT changeover style device.
If you’re in the market for a specific density sensor to work with your application, let the experts at SMD Fluid Switch help. We can provide full size, miniature, specialty and customized vertical float switches perfect for the job whatever your industry. This same interface float can be used on many of our other series float switches like our FM22 custom multilevel and FM23 series continuous level sensors.
For hydraulic applications like elevators, heavy lift vehicles or machine presses, water in hydraulic oil has several negative effects such as: Depleting some additives and reacting with others to form corrosive by-products which attack some metals, reducing lubricating film-strength which leaves critical surfaces vulnerable to wear and corrosion, and reducing filterability which can clog filters. The water would sink to the bottom of the tank below the hydraulic oil. To detect this water with a float-style level switch, one would need a float that sinks in hydraulic oil, but floats in water. The float would be located at the bottom of the tank. If water builds up there it would lift this float a small amount and trigger that there is water presence.
Oil and water do not mix. It’s not only a common analogy used to describe two things that are very different from one another, but it’s also something that’s visually obvious if you’ve ever poured the two liquids into the same vessel. The oil will always float to the top because of the density and the molecules in each substance. In other words, their specific gravity values are different.
Industrial manufacturing, such as steel production, mining, food processing, tank truck wash, power generation, heavy equipment washdown and more use water during the production process, creating wastewater that often contains oil from various sources. Before the water can be reused or discharged to the municipal water treatment plant, the oil must be separated and removed.
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