Magnetic Level Gauge Manufacturer & Supplier in America

Magnetic Level Gauge - Flagship Product

The BAM Series Magnetic Level Gauge by Bliss Americas offers a reliable, maintenance-free solution for continuous liquid level indication in high-pressure and high-temperature environments. Built for industrial durability and safety, it utilizes a float and magnet system that transmits level readings to an external indicator—eliminating the need for direct contact with process fluids.Manufactured to meet global standards such as ASME and PED, the BAM Series is engineered with robust construction, optional transmitters and switches, and a wide range of material compatibility for diverse applications.

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Features

Level indication viewable up to 150 feet away
No process liquid in contact with indicator glass
Ideal for high-temperature, high-pressure and corrosive applications
Manufactured to meet ASME B31.1/B31.3 or PED 97/23 as specifie
Magnetostrictive and radar transmitter options for non-invasive and/orredundant level control
Float failure indication (Standard)
All external parts SS316 or as specified
360° magnetic coupling
Full corrosion resistance system
Measurement is unaffected by pressure, vacuum, temperature, foam andviscosity at design condition
Minimum sensitivity to density variation
Permanent local indication without external power supply
Optional adjustable alarm switches

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What a Magnetic Level Gauge Is - and Where It Belongs in the Plant

A magnetic level gauge (MLG) measures liquid level in a sealed external chamber connected to a vessel by its process taps. A magnet-bearing float rides the liquid surface inside the chamber. Because the chamber liquid tracks the vessel liquid, the float position represents the true vessel level. A flag or shuttle indicator mounted on the outside of the chamber couples to the float magnet and flips to show level - without any opening, window, or seal exposed to the process.

This makes the MLG the standard replacement for tubular and armored sight glasses in services where glass breakage or seal failure could release hydrocarbons, steam, or toxic media. Typical process conditions span from vacuum to high pressure, from cryogenic to superheated temperatures, and from clean to corrosive or dirty fluids. The instrument's core purpose is continuous, power-independent, local-level indication that survives the operating envelope of the vessel it serves.

The Problem with Sight Glasses and Wetted Level Instruments

Conventional level methods carry operational liabilities that compound in refining and gas service:

Sight (gauge) glasses put a fragile, wetted window directly on the process. Thermal cycling, vibration, and pressure spikes lead to seal leaks, glass clouding, and breakage - each a fugitive-emission and personnel-safety event.
Wetted electronic instruments expose diaphragms, seals, and gaskets to the fluid, adding leak paths and maintenance points that must be isolated and recalibrated.
Displacers and tape systems drift with changes in density and require frequent recalibration; many cannot be read during a power loss.
Turbulent or flashing vessels produce erratic readings when the sensing element sits in the agitated process.

The BAM Series addresses each point directly. The indicator is isolated outside the chamber, so there is no wetted glass and no process-side seal to fail. The float is the only wetted moving part and is engineered for the fluid's specific gravity, temperature, and pressure. For agitated service, an oversized chamber with guide rods dampens turbulence and allows vapor to pass through the vacant area, preventing the float from violent vertical movement. Reading remains visible with no external power.

Applications by Industry & Vessel

Bliss Americas supplies magnetic level gauges for the following services. Demand is concentrated in the Texas Gulf Coast, Louisiana, and Okla homa corridors, where refining, petrochemical, and upstream/midstream gas operations drive specification volume.

Oil & Gas (Upstream / Midstream / Downstream)

2- and 3-phase separators and filter separators
Oil/water separators and surge tanks
Propane and LPG vessels; hydrocarbon storage tank
Flash drums and blowdown flash tanks

Petrochemical, Refining & Chemical Processing

Vacuum tower bottoms and alkylation units
Hot wells and process surge vessels
Corrosive and sour-service chemical vessels (Hastelloy / Monel / TFE-coated floats)

Power Generation, LNG & Fertilizer

Boiler drums and industrial boilers (high-temperature flag indicators to +1,000°F)
Deaerators and feedwater heaters
Gas chillers and cryogenic LNG service (frost extensions and cryogenic insulation to −320°F)
Fertilizer and general process-industry storage and surge duties

Manufacturing & Engineering Capability

As a magnetic level gauge manufacturer headquartered in Sugar Land, Texas, Bliss Americas supports industrial projects through integrated engineering, fabrication, testing, and custom-built level instrumentation for severe operating environments.

Manufacturing and assembly operations are supported through a dedicated 2-acre facility in La Porte, Texas, serving refinery, petrochemical, LNG, and oil & gas projects across Texas, Louisiana, Oklahoma, and broader Gulf Coast process markets.

Unlike resellers and sourcing companies, Bliss Americas manufactures magnetic level gauges using ASME-compliant fabrication procedures and in-house engineering support for custom process applications.

Our engineering team matches each gauge to the customer's fluid, pressure, temperature, and vessel geometry, and responds to urgent or complex RFQs with full documentation packages (MTRs, NDE reports, NACE/HIC certificates) when required by the project.

Industries Served

Oil & Gas

Refineries, offshore platforms, storage tanks

Petrochemical & Chemical

Corrosive and hazardous liquid handling

Power & Utilities

Boiler drum level, condensate monitoring

Water & Wastewater

Reservoirs, treatment plants

Marine & Shipbuilding

Ballast and bilge tank level monitoring

Pharmaceuticals

Sterile and sanitary level control

Food & Beverage Processing

Tanks containing liquids like syrups, oils, and dairy

Pulp & Paper Industry

Cemical treatment tanks, bleach towers, and storage vessels

Request a Quote for Your Application

Our Texas-based engineering team supports refinery, petrochemical, chemical processing, and oil & gas projects across Texas, Louisiana, Oklahoma, and the North American process industries. Share the following for the fastest, most accurate RFQ response: