Corrosive and aggressive chemical media
Acids, solvents, and aggressive additives attack standard wetted parts, so the transmitter must keep level accuracy without metal contact degrading over time.
Confirm the site problem, the Volivue approach, and the expected operating benefit before final selection.
Corrosive vapor and splash degrade wetted parts, threatening long-term accuracy and seal integrity.
Select a Volivue radar transmitter with PTFE, PVDF, or compatible wetted antenna and process seal reviewed against the medium and concentration.
Non-contact measurement with compatible wetted materials sustains accuracy and reduces maintenance in corrosive service.
Corrosion attacks the vapor space as hard as the liquid line
Hydrochloric and sulfuric acid, caustic solutions, solvents, and aggressive additives attack metal wetted parts and ordinary gaskets long before the electronics fail. Vapor above the liquid corrodes as surely as splash, and a level instrument that degrades quietly will drift first and leak later. Tank materials at these sites are often lined steel, FRP, or plastic, which also shapes the mounting.
Non-contact radar removes most of the wetted surface from the problem, but not all of it: the antenna face and process seal still live in the vapor space, so material compatibility is the heart of the selection. Volivue reviews the medium, concentration, and temperature against PTFE or PVDF wetted options. Simple vented dosing tanks with mild media may still justify a cheaper ultrasonic instrument.
PTFE or PVDF wetted parts chosen from your medium list, not habit
Selection starts from your medium list: antenna in PTFE or PVDF, seal and gasket materials checked against concentration and temperature, and the flange or adapter matched to the existing nozzle, including flange-cover options for lined or plastic tanks. Mounting keeps the antenna out of direct splash from fill lines, and the vapor-space condensation pattern is reviewed the same way as for steam service.
Level reaches the dosing or transfer PLC over 4-20mA with HART, and overfill alarm points are set against the real freeboard so containment and scrubber systems get an early warning rather than a spill report. Bluetooth commissioning keeps technicians away from the vapor space during setup. Replacement intervals follow documented compatibility, not guesswork, and the review record stays with the tank file.
Compatibility homework before a corrosive-service order
- List each medium with concentration and temperature so wetted materials are checked, not assumed.
- Confirm flange size, facing, and gasket compatibility with the existing tank nozzle and lining.
- Review vapor, splash, and washdown exposure around the mounting point, not just liquid contact.
- Set overfill and low-level alarm points against true freeboard and the downstream interlock logic.
How do we choose between PTFE and PVDF wetted parts?
By the medium, its concentration, and its temperature, checked against published compatibility data rather than habit. PTFE covers the broadest range of aggressive media; PVDF suits many acids and solvents with mechanical advantages in some designs. The Volivue review documents the choice per tank so a future medium change triggers a re-check instead of a surprise.
The tank is FRP with a vapor scrubber connection. Does radar still work?
Plastic and FRP tanks are routinely measured; the mounting review covers nozzle geometry and, where needed, antenna options suited to non-metallic vessels. A scrubber or closed vent keeps the tank slightly off atmospheric pressure, which radar tolerates, and the seal selection accounts for the vapor load. The review confirms details from your tank drawing rather than assuming a standard steel vessel.
Five checks that decide antenna, mounting, conversion, and output scope for the radar.
Collect tank drawings and geometry
Confirm tank height, diameter, shape, nozzle size, mounting position, dead zone, and internal obstacles before any range claim.
Review medium and process conditions
Medium name, vapor, foam, turbulence, corrosion, temperature, pressure, and hazardous area decide antenna, seal, and wetted material.
Select radar model and package
Choose range, antenna, wetted material, process connection, seal, protection class, and accessories from the reviewed conditions.
Map usable outputs
Define 4-20mA, HART, relay, optional RS485/Modbus, PLC, dashboard, alarm, trend, or volume fields so the signal is useful after installation.
Commission and validate
Check scaling, empty/full references, false echo suppression, tank conversion, alarm points, and trend behavior with site data.
Selection questions for engineers, procurement teams, and site maintenance.
When should I choose radar instead of ultrasonic?
Choose radar when vapor, foam, condensation, temperature swings, pressure, corrosion, long range, or high reliability requirements make ultrasonic echo unstable. For clean, vented, low-cost tanks, ultrasonic stays a good and more economical fit.
Does the transmitter measure weight?
No. It measures liquid level. Volume or percent fill is calculated from tank geometry or a strapping table; mass needs documented density assumptions.
Can radar handle foam and vapor?
The microwave beam passes through vapor and condensation, and echo filtering or a stilling well can stabilize foaming or turbulent surfaces. Severe foam is reviewed per application to confirm the antenna and mounting.
What media can it handle?
Fuel, lubricants, solvents, acids, chemicals, additives, condensate, and food-grade liquids, with antenna, seal, and wetted material confirmed by review.
Can it connect to PLC or SCADA?
Yes, the project scope can include 4-20mA, HART, relay, optional RS485/Modbus, gateway, dashboard, or API integration, with Bluetooth available for commissioning.
Do you support hazardous area or pressurized tank projects?
We can review hazardous-area, temperature, and pressure requirements, but no ATEX, IECEx, SIL, or local compliance claim is made without verified product data and documentation.
What information should we send first?
Send the tank drawing, medium name, height, nozzle details, temperature, pressure, vapor or foam condition, required outputs, and site conditions.
Send tank drawings, medium, temperature, pressure, and output target.
Share tank drawings, medium name, height, nozzle details, temperature, pressure, vapor or foam condition, output target, country or region, and hazardous-area need if any.