Ammonia - Seal Integrity is a Must
Ammonia is used in numerous processes in the chemical industry. It serves as a raw material for the production of fertilizers, but is also required in countless chemical reaction processes. A distinctive characteristic of ammonia is that it diffuses through most plastics, which places critical requirements on the construction of the sensor.
Level Measurement with VEGAPULS 66
Since ammonia is usually stored in pressurized vessels, level measurement with radar is a particularly attractive solution. Ammonia has the unusual characteristic that, when in a gaseous state, it dampens the microwave signals. Because the degree of signal dampening depends on the transmitting frequency of the sensor, the low frequency range of the VEGAPULS 66 offers special advantages. In contrast to high frequency radar, the emitted microwaves are only slightly dampened. To ensure optimal functionality however, implementation in a standpipe is always recommended. The mechanical construction of the VEGAPULS 66 with ceramic signal coupling is an absolutely diffusion-proof system.
