The VEGAFLEX 81 is a guided wave radar level sensor for continuous measurement of liquids and interfaces. Designed to handle harsh conditions, buildup, foam, and changing media, it is ideal for demanding marine applications such as settling tanks, service tanks, slop tanks, and hydraulic oil reservoirs.
The VEGAFLEX 81 is a high-performance guided wave radar sensor using Time Domain Reflectometry (TDR) for continuous level and interface measurement in tanks and vessels. It delivers precise, drift-free measurement results regardless of temperature, pressure, or medium properties, making it especially reliable in the demanding environments of the maritime and offshore industries.
With its robust stainless steel cable or rod probe design, the VEGAFLEX 81 is resistant to buildup, foam, condensation, and vapor layers. This makes it ideal for applications such as measuring heavy fuel oil in heated service tanks, monitoring hydraulic oil reservoirs, or tracking interface layers in slop tanks. It maintains full measurement performance even in narrow tanks or vessels with complex internal structures.
The sensor requires no recalibration and offers flexible probe configurations that can be easily shortened to match tank height. With its compact form factor and flexible installation options, the VEGAFLEX 81 integrates easily into existing ship systems. Its performance is consistent and maintenance-free, helping ship operators increase uptime and operational safety.
Marine Technic delivers the VEGAFLEX 81 to shipbuilders, fleet operators, and marine engineers looking for robust and accurate level instrumentation. As an official supplier of VEGA products, Marine Technic provides expert technical guidance, fast delivery, and solutions tailored to the maritime industry.
Measuring Range: Up to 75 meters
Process Temperature: -60 °C to +200 °C
Process Pressure: -1 to +40 bar
Accuracy: ±2 mm
Probe Types: Cable, rod, and coaxial probes (shortenable versions available)
Wetted Materials: 316L stainless steel, PFA, Alloy C22, Alloy C276, Alloy 400, Duplex 1.4462, 304L
Seal Materials: EPDM, FKM, FFKM, silicone with FEP coating
Process Connections: Threaded ≥ G¾, Flanged ≥ DN25
Output Signals: 4–20 mA, HART, Profibus PA, Foundation Fieldbus, Modbus
Installation Type: Top-mounted, with vertical probe insertion
Marine Applications: Fuel tanks, HFO service tanks, hydraulic systems, slop tanks, greywater systems
Compliance: Built for marine environments, vibration-resistant, suitable for classification approval





