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Home > Boiler & Water Columns External Caged Liquid Level Switches
 Boiler & Water Columns External Caged Liquid Level Switches   Printer Friendly Version
Boiler and Water Column Liquid Level Switches are single or multi-switch units that offer versatility and reliable operation in a variety of applications.

Available with up to three switch mechanisms for level alarm, control, and shutdown functions, the boiler and water column controls are designed for use in steam boiler applications.
Operating Principle Features Options Downloads Approvals
 
The buoyancy force of a process liquid on the float causes the float to ride on the liquid surface. The movement of the float with the liquid level moves an attraction sleeve into the field of the switch magnet, pulling the magnet toward the sleeve and actuating the switch.

 

  • Easy access to internals through flanged float chamber
  • Process temperature to +750° F (+399° C)
  • Multiple switch capability
  • Working steam pressure to 600 pounds
  • Cast iron or fabricated steel float chambers
  • 316 and 316L stainless steel floats
   

  • Dry contact, hermetically sealed or pneumatic switch mechanisms
  • Choice of switch enclosures
  • Try-cock and sight glass tappings
  • Right or left hand water column mounting
 
 Literature: (US English)
  Sales Literature
  Electric Switch Manual
  Hermetically Sealed Switches
  R Series High Temp Switch
  J Series Pneumatic Switch
  Series K Pneumatic Switch
  Instruction Manual
  Test Report FMEDA Float Switches
  Technology Brochure
  SIL Brochure

  
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    XP = Explosion Proof  •  IS = Intrinsically Safe  •  NI = Non-Incendive  •  NS = Non-Sparking  •  ELV = EMC/Low Voltage