Jerguson® FlashProof™ Magnicator® Magnetic Level Gauge (Clark Reliance)

Description

FlashProof™ Magnetic Level Gauge Manages Gas Buildup in Boiling Service

Large temperature differences between a vessel and an external indicator chamber can cause the chamber fluid to boil. Entrained gas may then collect beneath the float. This gas buildup can destabilize the float or cause it to sink.

The FlashProof magnetic level gauge creates a larger flow area around the float. Its 3-inch chamber and guide-rod arrangement allow entrained gases to escape safely. Consequently, the float can follow the actual liquid level more reliably.

This design supports applications where changing ambient or process temperatures create difficult boiling conditions. It also helps maintain a dependable visual reading when a conventional chamber may struggle.

Reduces Problems Caused by Flashing Vapours

Rapid depressurization can produce flashing vapours inside a magnetic level gauge. These vapours may accelerate a conventional float upward and drive it into the chamber top.

The FlashProof™ chamber provides additional internal space and a controlled path for entrained gas. Therefore, the design reduces the conditions that can cause sudden float acceleration.

This capability makes the FlashProof Magnicator well suited to light hydrocarbons, refrigerants, cryogenic fluids, and other flashing applications. It also helps protect measurement reliability during changing process conditions.

Keeps the Float Moving in Dirty or Viscous Service

Dirt, sludge, wax, and suspended solids can collect between a float and a standard chamber wall. This buildup may restrict float movement and create a false, unchanged level reading.

The oversized FlashProof chamber creates more free space around the float. Two guide rods direct the float while preventing it from binding against the chamber wall.

This design supports dirty, viscous, and solids-bearing process fluids. It can also reduce maintenance requirements in applications where deposits regularly develop.

Allows Flushing Without Removing the Float

The FlashProof™ configuration includes a bypass zone around the guided float. This open area allows operators to flush accumulated process material from the chamber.

Operators can complete this maintenance without removing the float from the column. Therefore, they can avoid unnecessary disassembly and reduce the need to replace disturbed gaskets.

Faster flushing can reduce downtime and simplify regular maintenance. This feature provides an important advantage in applications that experience sludge, wax, or solids buildup.

Maintains Focused Magnetic Coupling

The internal guide rods keep the float positioned near the external indicator, transmitter, or switches. This arrangement places the float’s magnetic field close to the required components.

The Magnicator float uses two 360-degree annular Alnico 8 ring magnets with opposing north poles. This configuration creates a strong, focused magnetic field.

As the float follows the liquid level, its magnetic field rotates the external indicator flags. The same field can also actuate compatible switches and support continuous level transmission.

Supports Demanding Pressure and Temperature Conditions

A 3-inch Schedule 40 pipe chamber comes standard with the FlashProof Magnicator. Jerguson also offers Schedule 80 and Schedule 120 chambers for higher-pressure applications.

The design complies with ASME B31.1 for power piping and ASME B31.3 for process piping. Standard configurations support pressure class ratings up to 1,919 PSIG at 100°F under ASME B31.3. Higher-pressure configurations may also be available.

The broad operating range covers temperatures from -325°F to 1000°F. This range supports cryogenic processes, light hydrocarbons, refrigerants, and high-temperature applications.

Integrates with Level Indicators, Transmitters, and Switches

The FlashProof™ Magnicator magnetic level gauge works with the full range of compatible Jerguson indicators, transmitters, and switches. Users can configure the system for local indication, continuous measurement, point-level switching, or combined functionality.

Available configurations can include a hermetically sealed flag indicator for severe environments. Cryogenic applications can also use non-frost extensions and insulation. These options help preserve gauge visibility where ice or frost could otherwise cover the indicator.

Vessel-centre dimensions range from 12 to 240 inches. Longer units may also be available after application review.