ABB MagWave Dual Chamber Level System MW05

Overview

The ABB MagWave MW05 is a dual-chamber level and interface measurement system engineered for critical industrial applications where both visual indication and electronic transmission are required from the same installation. Its dual chamber design combines a magnetic level indicator (MLI) – the same visual principle used in ABB’s KM26 gauge – with a guided wave radar (GWR) or magnetostrictive transmitter, ensuring maximum safety and separation between the process medium and the measuring device.

Seven Star LLC supplies the ABB MagWave MW05 to refineries, petrochemical, and power generation operators across Oman and the wider GCC with genuine ABB instrumentation.Seven Star LLC supplies this item on request with the manufacturer documentation, and availability and lead time are confirmed at quotation.

Operating Principle

The MagWave system combines the magnetic level indicator with a guided wave radar or magnetostrictive transmitter, delivering continuous and highly accurate level readings while providing measurement redundancy – the visual indicator continues to show level even if the electronic transmitter is being serviced, and vice versa. This dual-measurement approach ensures reliable performance even in dynamic or high-pressure processes where a single measurement technology alone might be insufficient.

The MW05 is especially suitable for interface detection between immiscible liquids such as oil and water, since the guided wave radar or magnetostrictive element can resolve the interface boundary that a simple visual float indicator alone could not distinguish with the same precision. Seven Star LLC selects between the AT100 magnetostrictive transmitter (with HART or FOUNDATION Fieldbus output) and the A38 capacitance transmitter option to match the customer’s actual process and integration requirements.

Engineering Design of the ABB MagWave MW05

The isolated chamber design ensures that any process disturbance does not affect the measurement electronics, enhancing safety in refineries, petrochemical plants, and power stations. Stainless steel chambers provide high corrosion resistance and mechanical strength, and the robust overall design minimizes maintenance despite the system’s dual-technology complexity.

The MW05 is compatible with a wide range of process fluids and can withstand extreme temperatures and pressures: standard couplers are rated to 1500 psi at 100°F (103 bar at 38°C), with high-pressure options to 3000–5000 psi and a high-pressure/temperature option rated 1500 psi at 800°F (103 bar at 427°C), plus a saturated-steam-rated coupler at 2000 psi/635°F (138 bar/335°C) for power-plant service. Chamber diameters range from 1½ to 4 inches in Schedule 10, 40, or 80, in 304SS, 316SS, Hastelloy C-276, or Alloy 20, with an optional Teflon-coated chamber for float slip resistance. Its field-proven durability and easy integration into existing setups support seamless plant operation even where the MagWave system is added to an existing vessel rather than specified from the start.

Key Features

• Dual chamber design combining magnetic visual indication and electronic transmission
• Guided wave radar or magnetostrictive transmitter option
• Measurement redundancy between visual and electronic readings
• Isolated chamber protects electronics from process disturbance
• Especially suited to interface detection between immiscible liquids
• Stainless steel chambers, high corrosion resistance
• Withstands extreme temperatures and pressures
• Field-proven durability, easy retrofit integration
• Pressure rating from 1500 psi standard up to 5000 psi high-pressure option
• High-pressure/temperature coupler rated 1500 psi at 800°F (427°C); saturated-steam coupler for power-plant service
• AT100 magnetostrictive (HART/Fieldbus) or A38 capacitance transmitter options

Industrial Applications

The MW05 is ideal for use in refineries, petrochemical plants, and power stations, excelling in environments where both visual indication and electronic transmission are required, and where interface detection between immiscible liquids such as oil and water is a critical process optimization requirement.

Across Oman’s petrochemical and power generation sectors, and throughout the wider GCC, Seven Star LLC supplies the MagWave MW05 to facilities in Muscat, Sohar, and Salalah that require dependable, factory-genuine dual-chamber level systems with full local support, correctly matched to the customer’s pressure, temperature, and process fluid requirements.

Technical Specifications

Selection Checklist for a Dual-Chamber Level System

Specifying the ABB MagWave MW05 correctly depends on a clear picture of the vessel and the fluids it holds. Before an enquiry is finalised, engineers should collect the following information from the process data sheet and vessel drawings:

• Centre-to-centre distance of the process connections and the measuring range required.
• Design pressure and temperature, including upset and steam-out conditions.
• Specific gravity of the upper and lower liquids for interface duty, and whether an emulsion layer is expected.
• Process connection type and rating, and any vent or drain requirements.
• Preferred transmitter technology (guided wave radar or magnetostrictive) and the required output and hazardous-area approval.

Installation and Commissioning

The chambers must be installed vertically and the isolation valves opened slowly so that the float is not driven hard against its stops by a pressure surge. Once the process has stabilised, compare the visual indicator with the transmitter reading and with a manual reference such as a dip or sight-glass check. Any consistent offset between the two measurements should be investigated before the system is put into the control or trip loop.

Maintenance and Troubleshooting

A float that sticks, an indicator that shows a partial flag pattern, or disagreement between the indicator and the transmitter often means deposits in the chamber or a float that no longer matches the fluid density. Periodic flushing through the drain connection, and checking the float against the current process specific gravity, resolve most of these issues.

Applications in Oman and the GCC

Separators, knock-out drums, condensate pots and boiler steam drums in Omani oil, gas and power facilities are typical locations for this type of system, where operators want an independent local reading alongside the transmitted signal. Seven Star LLC supplies the MagWave MW05 configured from your process data and helps review drawings and documentation before order, so the MW05 arrives ready for installation.

Request a Quote for ABB MagWave Dual Chamber Level System MW05

Contact Seven Star LLC for a quotation on the ABB MagWave MW05 dual chamber level system, with manufacturer documentation and local support across Oman and the GCC.

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