BM26A-7000

The KROHNE BM26A-7000 Magnetic Level Indicator is a heavy-duty bypass chamber engineered to safely deliver continuous level and interface measurement in the harshest high-temperature and high-pressure industrial environments. The BM26A-7000 is built from premium materials like Hastelloy® C276 or Inconel® 625, it easily functions operating in extreme conditions reaching +400°C and incredibly high pressures up to 400 barg.

For corrosive processes operating under pressure, it offers a dedicated PTFE-lined variant (rated to +200°C and 40 barg). Designed with a specially calibrated float, it can measure fluids with densities as low as 370 kg/m³ and accurately detect the interface between two different liquids. The BM26A-7000 guarantees failsafe local monitoring on critical oil/water separators and feedwater heaters, seamlessly integrating with the LT40 transmitter for remote 4-20 mA process control.

Key Applications of BM26A-7000:

Specifically engineered for the Chemical, Petrochemical, Oil & Gas, and Power industries. Essential for feedwater heaters, industrial boilers, oil/water separators, flash drums, gas chillers, and pressurised acid tanks.

Heavy-duty construction rated for high-temperature and high-pressure applications up to +400°C (+752°F) and 400 barg (5801 psig)
Available in a specialised PTFE-lined measuring chamber variant designed for pressurised corrosives
Uses specially designed floats capable of measuring very low liquid densities down to 370 kg/m³ (23.09 lb/ft³)
Constructed from highly robust alloys including Hastelloy® C276, Inconel® 625, 316L, and 304L
Features a hermetically sealed IP68 borosilicate glass tube that houses the rotating visual indicator flaps

Frequently Asked Questions

What are the pressure and temperature limits of the BM26A-7000 MLI?

The standard metallic BM26A-7000 Magnetic Level Indicator withstands absolute extreme limits of 400 barg process pressure and temperatures up to +400°C. The PTFE-lined version is limited to 40 barg and +200°C.

Is the BM26A-7000 compatible with corrosive acids under pressure?

Yes, the KROHNE BM26A-7000 offers a dedicated PTFE-lined measuring chamber version specifically designed for highly corrosive acids inside pressurized tanks up to 40 barg.

Can the BM26A-7000 measure interface levels?

Yes, the BM26A-7000 supports both total level and interface measurement. It utilizes a specially weighted float designed to sit precisely at the boundary between two liquids with a minimum density difference of 100 kg/m³.

How do I install thermal insulation on the BM26A-7000?

If you put thermal insulation around the extreme-temperature measuring chamber, you must not cover the housing of the optional reed-chain level transmitter or limit switch. You must leave at least 15 mm of empty space to prevent severe heat damage to the electronics.

What maintenance does the BM26A-7000 require in high-pressure tanks?

The rugged metal and borosilicate glass design of the BM26A-7000 is completely maintenance-free. Ensure that the high-pressure fluid does not contain magnetic particles larger than 0.05 mm to maintain magnetic coupling strength.