337 Highlandia Drive Baton Rouge, LA 70810 1.800.299.4142 [email protected]




VEGAPASS 81 is a bypass for the VEGAFLEX 80 guided wave radar level sensor family. VEGAFLEX sensors are ideal for applications with a variety of process conditions and with no moving parts. They are unaffected by shifts in pressure, temperature, or product specific gravity, making the range reliable for level measurement in potentially explosive atmospheres (hazardous areas) and non-hazardous (safe areas). The combination of VEGAPASS 81 with VEGAFLEX enables a continuous level measurement outside the vessel. The bypass consists of a standpipe which is mounted as a communicating vessel laterally to the vessel via two process fittings. This kind of mounting ensures that the level in the standpipe and the vessel are the same.

Technical specifications
Measuring range – Distance
  • 4 m
Process temperature
  • -196 … 450 °C
Process pressure
  • 0 … 205 bar


  • ±0.1″ (±2 mm)


The product’s guided wave radar level sensor is available with hazardous area certifications to meet ATEX & IECEx directives for Zone 1 and Zone 2 installations.

VEGA level sensors are suitable for use in hazardous areas and their instruments also have various ship approvals such as e.g. DNV, GL, LRS or ABS

Learn more about magnetic level indicators available at BBP.
To learn more about the product, click here.
To download data sheets with the specifications and operating instructions of VEGAPASS 81, click the links below.
  • product description
  • mounting
  • technical data
  • dimensions

Additional information


Chemical, Engineering, Food & Beverage, Oil & Gas, Pharmaceutical, Power Generation, Pulp & Paper, Refining, Water & Wastewater