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  • Kristen Modzelewski

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 Jerguson FlashProof design also addresses problems caused by dirty or viscous services. The use of an oversized 3″ Schedule 40 chamber creates additional space to prevent the float from binding when dirt, sludge, or wax-like solids are present in the process fluid. In a standard gage dirty service could potentially bind the float, causing the level to appear unchanged. Additionally, the bypass zone allows for the gage to be flushed without removing the float from the column.

Specification Overview

• Larger diameter chamber with float guides

• Complies to ASME B31.1 and ASME B31.3

• Available with full range of Jerguson indicators, transmitters and switches

• 3" Schedule 40 pipe chamber as standard

• Schedule 80 and 120 available for high pressure applications

• Size Range from 12" to 240" (305mm to 6096mm) vessel centers (Consult factory for longer units)

• Specific gravity minimum: 0.36

• Pressure class rating up to 1919 PSIG (132 BarG) @ 100ºF (37ºC) as per ASME B31.3 (Higher pressures are available)

• Temperature Range: -325ºF to 1000ºF (-198ºC to 538ºC)

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