Series B73 and series 75 sealed external cage liquid level switches

Series B73 and series 75 external cage type level switches are completely self-contained units designed for side mounting to a tank or vessel with threaded, socket weld or flanged pipe connections. These float-actuated controls have proven their reliability in process control for decades.Carbon steel or stainless steel welded float chamber
Service pressures up to 2240 psig (154 bar)
Process temperatures up to +1000 °F (+538 °C)
Specific gravity ratings as low as 0.32
Available switch styles including dry contact, hermetically sealed and pneumatic
Single or multiple switch mechanisms available
Optional high temperature insulation available
Choice of switch mechanism: ◦ Dry contact ◦ Hermetically sealed ◦ Pneumatic
Choice of switch mechanism enclosure: ◦ TYPE 4X/7/9 Class I, Div. 1, Groups B, C & D, polymer coated aluminum ◦ NEMA 1, carbon steel for pneumatics
Choice of tank connection: ◦ 1", 1½" or 2" NPT ◦ 1", 1½" or 2" flanged side/side ◦ 1", 1½" or 2" flanged side/bottom ◦ 1", 1½" or 2" socket welds
Options
Interface calibration
Extreme temperature modifications
Customized installation dimensions
Customized exterior surface preparation and finish
Customized actuation levels
Vent and drain connections