Displacer level switch B10 series
for liquidscarbon steelbrass

displacer level switch
displacer level switch
displacer level switch
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Characteristics

Technology
displacer
Medium
for liquids
Material
stainless steel, brass, aluminum, carbon steel
Mounting
threaded, vertical, flange, suspended
Process temperature

Min.: 38 °C (100 °F)

Max.: 260 °C (500 °F)

Process pressure

17 bar, 55 bar (246.56 psi)

Description

Series B10 displacer type level measurement units are wide differential tandem switches that are factory calibrated with a choice of several switch operating sequences designed to meet virtually any application. Series B15 units are narrow differential tandem switches that are factory calibrated. Each switch actuates at a different level. Displacer switch operation is based upon simple buoyancy, whereby a spring is loaded with weighted displacers, which are heavier than the liquid. Immersion of the displacers in the liquid results in buoyancy force change, changing the net force acting on the spring. The spring compresses as the buoyancy force increases. A magnetic sleeve is connected to the spring and operates within a non-magnetic barrier tube. Spring movement causes the magnetic sleeve to move into the field of a pivoted magnet, actuating a switch mechanism located outside the barrier tube. Built-in limit stops prevent over stroking of the spring, under level surge conditions. Displacers adjustable at any point along the suspension cable 20 feet (6 meters) suspension cable standard Anti-surge design eliminates the possibility of switch shortcycling Flanged or threaded mounting available Easy installation Field adjustable set point and switch differential NACE models Floating rooftop models Choice of switch mechanism: ◦ Dry contact ◦ Hermetically sealed ◦ Pneumatic Choice of switch mechanism enclosure: ◦ 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 or cast iron ◦ NEMA 1, carbon steel for pneumatics Choice of displacers: ◦ Porcelain ◦ 316 Stainless steel ◦ Karbate ◦ Brass

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Level control

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