Magnetic float level switch T21
for liquidscarbon steelaluminum

magnetic float level switch
magnetic float level switch
magnetic float level switch
magnetic float level switch
magnetic float level switch
magnetic float level switch
magnetic float level switch
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Characteristics

Technology
magnetic float
Medium
for liquids
Material
stainless steel, aluminum, carbon steel
Mounting
threaded, flange
Other characteristics
compact, multi-point, remote, ATEX

Description

Dual Stage Switch T21 units combine the functions of two separate narrow differential level controls in a single, compact, easy-to-install instrument. Two independent switch mechanisms are employed to provide two actuating levels at least 8” apart, at actuating depths of up to 48 inches (1219 mm), for applications such as high and low level alarm operation. Model T21 tandem float switches are available with optional cages to help stabilize the floats under turbulent conditions. All float operated liquid level controls operate on the basic buoyancy principle which states "the buoyancy force action on an object is equal to the mass of liquid displaced by the object." As a result, floats ride on the liquid surface partially submerged and move the same distance the liquid level moves. Because of this, they are normally used for narrow level differential applications such as high level alarm or low level alarm. Float diameters of 3" × 5", 4" and 4½" available Tank connections available in 1" NPT, cast iron, forged, or stainless steel flanges Choice of switch mechanism: ◦ Dry contact ◦ Hermetically sealed ◦ Pneumatic Choice of switch enclosure: ◦ NEMA 1 carbon steel for pneumatics ◦ TYPE 4X/7/9 Class I, Div. 1, Groups C & D, polymer coated aluminum ◦ TYPE 4X/7/9 Class I, Div. 1, Group B, polymer coated aluminum OPTIONS NACE ATEX approved housing Housing heater Float guide cage Tropicalized switch mechanism Special flange face finishes Submersible housing Elevated temperature

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.