Ultimate Guide to Radar Level Gauge Lenses: Corrosion-Resistant and Large Aperture Solutions

Description: Need a chemically resistant radar lens? Learn how to choose the best flat, large aperture lens for your radar level gauge.

Part 1: What is a radar level gauge lens?

The lens (or “radar window”) protects the sensor antenna while allowing microwave signals to pass through. Specialized corrosion-resistant lenses are essential for accuracy in corrosive or high-humidity environments.

Part 2: Key Selection Criteria

Material –

PP/PVDF: Affordable and suitable for mild chemicals.

PTFE (Teflon®): Best for strong acid and alkali resistance and high temperatures.

Size is critical – lenses over 80 mm enhance signal strength in large tanks.

Sealed to resist fogging – Choose IP68 or fully sealed designs.

Part 3: Key Applications

Oil and Gas: Resistant to hydrogen sulfide and salt water corrosion.

Pharmaceuticals: Non-stick polytetrafluoroethylene (PTFE) prevents material buildup.

Pulp & Paper: Handles abrasive slurries and steam.