Jerguson® FlashProof ™ Magnicator®

Avoid False Readings in Boiling Fluids, Eliminate Crushed Floats Due to Flashing, or Sticking Floats Due to Dirty Service

The Jerguson FlashProof design addresses two potential problems that may occur with standard level indicators: boiling fluids and flashing vapors.  By employing a larger 3″ Schedule 40 pipe and two internal guide rods, entrained gases that build up under the float can harmlessly escape.  The float is held to one side of the chamber to insure an optimized magnetic field in close proximity to the indicator, transmitter or switches.  This provides an accurate float level and indicator reading.

The following video depicts the benefits of the FlashProof Magnicator compared to a standard magnetic gage column in a flashing application:


Magnicator II_Top View_Illustration

Specification Overview

  • Larger diameter chamber with float guides
  • Designed to ASME B31.1 and ASME B31.3
  • Available with full range of Jerguson indicators, transmitters and switches
  • Schedule 40 pipe chamber as standard; Schedule 80 pipe available
  • Size Range from 12″ to 240″ (304mm to 6090mm) vessel centers (Consult factory for longer units)
  • Specific gravity minimum: 0.36
  • Pressure class rating up to 2258 PSI (155 bar) @ 100°F (38°C) as per ASME B31.3
  • Temperature Range: -325°F to 1000°F (-198°C to 537°C)

boiling fluids

flashing vapors

Common Applications

common apps



Brochure: Magnicator Magnetic Liquid Level Gage Brochure

Drawings: Magnicator FlashProof Drawings

Configuration Guide: Magnicator Application Sheet