Magnetic float level switch Tuffy® II
for liquidsfor tankthreaded

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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magnetic float
for liquids
for tank
threaded, flange, side-mount, horizontal, fixed
Other characteristics
Process temperature

Min.: -54 °C
(-65 °F)

Max.: 400 °C
(752 °F)

Process pressure

181 bar
(2,625.18 psi)


The Tuffy® II buoyancy level switches are float-actuated devices designed for horizontal mounting in a tank or vessel through threaded or flanged pipe connections. The compact size allows for installation in small vessels, while its many features provide a variety of application uses. The single switch mechanism is available in SPDT or DPDT forms on units designed for fixed or adjustable, narrow or wide differential and interface service levels. 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. Single electric switch for high or low level alarm or control functions Spacious switch wiring compartment NACE and/or ASME B31.3 construction Specific gravity as low as 0.40 OPTIONS Narrow or adjustable level differential Silver or gold switch contacts SPDT or DPDT dry contact or hermetically-sealed switches External mounting chambers Hastelloy C wetted parts

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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.