Seeries 3 ASME B31.1 – Liquid Level Switches

The Series 3 float and displacer-actuated level switches are designed, built, and certified to meet the requirements of ASME B31.1. They are ideal for critical alarm set points in clean liquid applications.

Measurement Principle : 

The buoyancy force of a process liquid on the float causes the float to move with the liquid surface. The movement of the float moves an attraction sleeve into the field of the switch magnet, pulling the magnet toward the sleeve and actuating the switch.

Features : 

  • 14 inch (356 mm) side/side process connections
  • Sealed or flanged float chamber design
  • Special float materials available upon request
  • Pressures up to 1410 psig (97.1 bar)
  • Process temps to +750° F (+399° C)
  • FM, CSA, CENELEC and SAA approvals

Applications : 

  • Feedwater heaters
  • Condensate drip pots
  • Deaerators
  • Steam drums
  • Flash tanks
  • Hot wells

Options : 

  • Choice of switch mechanism enclosure
  • Choice of switch styles
  • Single or multiple switches for single or staged applications
  • Special materials of construction available upon request
  • Available with special coatings
  • 1 inch, 1 1/2 inch or 2 inch tank connections