Float level switch Tuffy®
broken finger floatfor liquidsfor tank

float level switch
float level switch
float level switch
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float, broken finger float
for liquids
for tank
stainless steel, carbon steel
threaded, flange, side-mount, horizontal
Other characteristics
Process temperature

Min.: -40 °C
(-40 °F)

Max.: 150 °C
(302 °F)

Process pressure

103 bar
(1,493.89 psi)


The Pneumatic Tuffy® liquid level switch is a compact pneumatic level switch designed for horizontal mounting in a tank or vessel through threaded or flanged pipe connections. 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. All 316 SS wetted components NACE and/or ASME B31.3 construction Specific gravity as low as 0.40 2-inch NPT mounting OPTIONS Specific gravity rating Carbon steel and stainless steel external mounting cages Variety of thread-on flanges

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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.